20887676 has 12 divisors (see below), whose sum is σ = 37732800. Its totient is φ = 10106880.

The previous prime is 20887673. The next prime is 20887687. The reversal of 20887676 is 67678802.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20887673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84101 + ... + 84348.

It is an arithmetic number, because the mean of its divisors is an integer number (3144400).

Almost surely, 2^20887676 is an apocalyptic number.

It is an amenable number.

20887676 is a deficient number, since it is larger than the sum of its proper divisors (16845124).

20887676 is a wasteful number, since it uses less digits than its factorization.

20887676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168484 (or 168482 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 20887676 is about 4570.3037098206. The cubic root of 20887676 is about 275.3996437298.

The spelling of 20887676 in words is "twenty million, eight hundred eighty-seven thousand, six hundred seventy-six".