20932933 has 16 divisors (see below), whose sum is σ = 25816320. Its totient is φ = 16563456.

The previous prime is 20932909. The next prime is 20932937. The reversal of 20932933 is 33923902.

It is not a de Polignac number, because 20932933 - 2⁹ = 20932421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20932895 and 20932904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20932937) 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, 4648 + ... + 7966.

It is an arithmetic number, because the mean of its divisors is an integer number (1613520).

Almost surely, 2^20932933 is an apocalyptic number.

It is an amenable number.

20932933 is a deficient number, since it is larger than the sum of its proper divisors (4883387).

20932933 is a wasteful number, since it uses less digits than its factorization.

20932933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3396.

The product of its (nonzero) digits is 8748, while the sum is 31.

The square root of 20932933 is about 4575.2522334840. The cubic root of 20932933 is about 275.5984016133.

The spelling of 20932933 in words is "twenty million, nine hundred thirty-two thousand, nine hundred thirty-three".