16317885 has 16 divisors (see below), whose sum is σ = 26159040. Its totient is φ = 8686080.

The previous prime is 16317871. The next prime is 16317887. The reversal of 16317885 is 58871361.

It is not a de Polignac number, because 16317885 - 2¹⁵ = 16285117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16317887) 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, 13350 + ... + 14520.

It is an arithmetic number, because the mean of its divisors is an integer number (1634940).

Almost surely, 2^16317885 is an apocalyptic number.

16317885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16317885 is a deficient number, since it is larger than the sum of its proper divisors (9841155).

16317885 is a wasteful number, since it uses less digits than its factorization.

16317885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108.

The product of its digits is 40320, while the sum is 39.

The square root of 16317885 is about 4039.5401966065. The cubic root of 16317885 is about 253.6420703042.

The spelling of 16317885 in words is "sixteen million, three hundred seventeen thousand, eight hundred eighty-five".