16968877 has 4 divisors (see below), whose sum is σ = 16977436. Its totient is φ = 16960320.

The previous prime is 16968859. The next prime is 16968883. The reversal of 16968877 is 77886961.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3048516 + 13920361 = 1746^2 + 3731^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16968877 is a prime.

It is a super-2 number, since 2×16968877² = 575885573282258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16968817) 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, 403 + ... + 5839.

It is an arithmetic number, because the mean of its divisors is an integer number (4244359).

Almost surely, 2^16968877 is an apocalyptic number.

It is an amenable number.

16968877 is a deficient number, since it is larger than the sum of its proper divisors (8559).

16968877 is an equidigital number, since it uses as much as digits as its factorization.

16968877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8558.

The product of its digits is 1016064, while the sum is 52.

The square root of 16968877 is about 4119.3296784793. The cubic root of 16968877 is about 256.9711494914.

The spelling of 16968877 in words is "sixteen million, nine hundred sixty-eight thousand, eight hundred seventy-seven".