16311933 has 12 divisors (see below), whose sum is σ = 25703808. Its totient is φ = 9885960.

The previous prime is 16311929. The next prime is 16311941. The reversal of 16311933 is 33911361.

It is not a de Polignac number, because 16311933 - 2² = 16311929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16311897 and 16311906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16311913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82285 + ... + 82482.

It is an arithmetic number, because the mean of its divisors is an integer number (2141984).

It is a self-describing number.

Almost surely, 2^16311933 is an apocalyptic number.

It is an amenable number.

16311933 is a deficient number, since it is larger than the sum of its proper divisors (9391875).

16311933 is a wasteful number, since it uses less digits than its factorization.

16311933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164784 (or 164781 counting only the distinct ones).

The product of its digits is 1458, while the sum is 27.

The square root of 16311933 is about 4038.8034119031. The cubic root of 16311933 is about 253.6112276390.

The spelling of 16311933 in words is "sixteen million, three hundred eleven thousand, nine hundred thirty-three".