16868093 has 4 divisors (see below), whose sum is σ = 18401568. Its totient is φ = 15334620.

The previous prime is 16868087. The next prime is 16868099. The reversal of 16868093 is 39086861.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39086861 = 11 ⋅3553351.

It is an interprime number because it is at equal distance from previous prime (16868087) and next prime (16868099).

It is a cyclic number.

It is not a de Polignac number, because 16868093 - 2¹⁶ = 16802557 is a prime.

It is a super-2 number, since 2×16868093² = 569065122913298, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16868093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16868099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 766721 + ... + 766742.

It is an arithmetic number, because the mean of its divisors is an integer number (4600392).

Almost surely, 2^16868093 is an apocalyptic number.

It is an amenable number.

16868093 is a deficient number, since it is larger than the sum of its proper divisors (1533475).

16868093 is a wasteful number, since it uses less digits than its factorization.

16868093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533474.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 16868093 is about 4107.0784019787. The cubic root of 16868093 is about 256.4613922515.

It can be divided in two parts, 1686 and 8093, that added together give a palindrome (9779).

The spelling of 16868093 in words is "sixteen million, eight hundred sixty-eight thousand, ninety-three".