20873976 has 32 divisors (see below), whose sum is σ = 52316160. Its totient is φ = 6940512.

The previous prime is 20873959. The next prime is 20873999. The reversal of 20873976 is 67937802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11721 + ... + 13383.

It is an arithmetic number, because the mean of its divisors is an integer number (1634880).

Almost surely, 2^20873976 is an apocalyptic number.

It is an amenable number.

20873976 is an abundant number, since it is smaller than the sum of its proper divisors (31442184).

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

20873976 is a wasteful number, since it uses less digits than its factorization.

20873976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195 (or 2191 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 20873976 is about 4568.8046576758. The cubic root of 20873976 is about 275.3394200154.

The spelling of 20873976 in words is "twenty million, eight hundred seventy-three thousand, nine hundred seventy-six".