16868507 has 8 divisors (see below), whose sum is σ = 17336592. Its totient is φ = 16403200.

The previous prime is 16868497. The next prime is 16868531. The reversal of 16868507 is 70586861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16868507 - 2⁴ = 16868491 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16868107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18707 + ... + 19587.

It is an arithmetic number, because the mean of its divisors is an integer number (2167074).

Almost surely, 2^16868507 is an apocalyptic number.

16868507 is a deficient number, since it is larger than the sum of its proper divisors (468085).

16868507 is an equidigital number, since it uses as much as digits as its factorization.

16868507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 16868507 is about 4107.1288024604. The cubic root of 16868507 is about 256.4634903774.

The spelling of 16868507 in words is "sixteen million, eight hundred sixty-eight thousand, five hundred seven".