16931085 has 16 divisors (see below), whose sum is σ = 27158976. Its totient is φ = 9006848.

The previous prime is 16931081. The next prime is 16931111. The reversal of 16931085 is 58013961.

It is a cyclic number.

It is not a de Polignac number, because 16931085 - 2² = 16931081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16931081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5797 + ... + 8213.

It is an arithmetic number, because the mean of its divisors is an integer number (1697436).

Almost surely, 2^16931085 is an apocalyptic number.

16931085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16931085 is a deficient number, since it is larger than the sum of its proper divisors (10227891).

16931085 is a wasteful number, since it uses less digits than its factorization.

16931085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2892.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 16931085 is about 4114.7399674828. The cubic root of 16931085 is about 256.7802377772.

The spelling of 16931085 in words is "sixteen million, nine hundred thirty-one thousand, eighty-five".