20812958 has 16 divisors (see below), whose sum is σ = 31926960. Its totient is φ = 10172736.

The previous prime is 20812943. The next prime is 20812973. The reversal of 20812958 is 85921802.

It is an interprime number because it is at equal distance from previous prime (20812943) and next prime (20812973).

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, 27116 + ... + 27872.

It is an arithmetic number, because the mean of its divisors is an integer number (1995435).

Almost surely, 2^20812958 is an apocalyptic number.

20812958 is a deficient number, since it is larger than the sum of its proper divisors (11114002).

20812958 is a wasteful number, since it uses less digits than its factorization.

20812958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 20812958 is about 4562.1220939383. The cubic root of 20812958 is about 275.0708709903.

The spelling of 20812958 in words is "twenty million, eight hundred twelve thousand, nine hundred fifty-eight".