20932965 has 32 divisors (see below), whose sum is σ = 39177600. Its totient is φ = 10575360.

The previous prime is 20932963. The next prime is 20932981. The reversal of 20932965 is 56923902.

It is not a de Polignac number, because 20932965 - 2¹ = 20932963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20932963) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1516 + ... + 6645.

It is an arithmetic number, because the mean of its divisors is an integer number (1224300).

Almost surely, 2^20932965 is an apocalyptic number.

It is an amenable number.

20932965 is a deficient number, since it is larger than the sum of its proper divisors (18244635).

20932965 is a wasteful number, since it uses less digits than its factorization.

20932965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8194 (or 8188 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 20932965 is about 4575.2557305576. The cubic root of 20932965 is about 275.5985420482.

The spelling of 20932965 in words is "twenty million, nine hundred thirty-two thousand, nine hundred sixty-five".