20710900 has 36 divisors (see below), whose sum is σ = 51364768. Its totient is φ = 7100640.

The previous prime is 20710889. The next prime is 20710919. The reversal of 20710900 is 901702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14094 + ... + 15493.

Almost surely, 2^20710900 is an apocalyptic number.

20710900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20710900 is an abundant number, since it is smaller than the sum of its proper divisors (30653868).

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

20710900 is a wasteful number, since it uses less digits than its factorization.

20710900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29608 (or 29601 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 20710900 is about 4550.9229833079. The cubic root of 20710900 is about 274.6205234275.

The spelling of 20710900 in words is "twenty million, seven hundred ten thousand, nine hundred".