20872602 has 24 divisors (see below), whose sum is σ = 47604960. Its totient is φ = 6591240.

The previous prime is 20872601. The next prime is 20872603. The reversal of 20872602 is 20627802.

It is an interprime number because it is at equal distance from previous prime (20872601) and next prime (20872603).

It is not an unprimeable number, because it can be changed into a prime (20872601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30174 + ... + 30857.

It is an arithmetic number, because the mean of its divisors is an integer number (1983540).

Almost surely, 2^20872602 is an apocalyptic number.

20872602 is an abundant number, since it is smaller than the sum of its proper divisors (26732358).

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

20872602 is a wasteful number, since it uses less digits than its factorization.

20872602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61058 (or 61055 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 20872602 is about 4568.6542876431. The cubic root of 20872602 is about 275.3333786066. Note that the first 4 decimals are identical.

The spelling of 20872602 in words is "twenty million, eight hundred seventy-two thousand, six hundred two".