20965902 has 16 divisors (see below), whose sum is σ = 43065552. Its totient is φ = 6799680.

The previous prime is 20965891. The next prime is 20965921. The reversal of 20965902 is 20956902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46999 + ... + 47442.

It is an arithmetic number, because the mean of its divisors is an integer number (2691597).

Almost surely, 2^20965902 is an apocalyptic number.

20965902 is an abundant number, since it is smaller than the sum of its proper divisors (22099650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20965902 is a wasteful number, since it uses less digits than its factorization.

20965902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94483.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 20965902 is about 4578.8537867025. The cubic root of 20965902 is about 275.7430132590.

The spelling of 20965902 in words is "twenty million, nine hundred sixty-five thousand, nine hundred two".