16808831 has 8 divisors (see below), whose sum is σ = 18246144. Its totient is φ = 15392160.

The previous prime is 16808821. The next prime is 16808833. The reversal of 16808831 is 13880861.

It is a happy number.

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 16808831 - 2¹⁰ = 16807807 is a prime.

It is a super-2 number, since 2×16808831² = 565073599173122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16808791 and 16808800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16808833) 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, 3440 + ... + 6741.

It is an arithmetic number, because the mean of its divisors is an integer number (2280768).

Almost surely, 2^16808831 is an apocalyptic number.

16808831 is a deficient number, since it is larger than the sum of its proper divisors (1437313).

16808831 is a wasteful number, since it uses less digits than its factorization.

16808831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10321.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 16808831 is about 4099.8574365458. The cubic root of 16808831 is about 256.1607013057.

The spelling of 16808831 in words is "sixteen million, eight hundred eight thousand, eight hundred thirty-one".