20876812 has 24 divisors (see below), whose sum is σ = 39972240. Its totient is φ = 9461760.

The previous prime is 20876809. The next prime is 20876851. The reversal of 20876812 is 21867802.

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, 26764 + ... + 27532.

It is an arithmetic number, because the mean of its divisors is an integer number (1665510).

Almost surely, 2^20876812 is an apocalyptic number.

20876812 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20876812 is a deficient number, since it is larger than the sum of its proper divisors (19095428).

20876812 is a wasteful number, since it uses less digits than its factorization.

20876812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401 (or 1399 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 20876812 is about 4569.1150127787. The cubic root of 20876812 is about 275.3518889262.

The spelling of 20876812 in words is "twenty million, eight hundred seventy-six thousand, eight hundred twelve".