20877832 has 16 divisors (see below), whose sum is σ = 39262140. Its totient is φ = 10407936.

The previous prime is 20877821. The next prime is 20877851. The reversal of 20877832 is 23877802.

It can be written as a sum of positive squares in 2 ways, for example, as 19766916 + 1110916 = 4446^2 + 1054^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20877791 and 20877800.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 873 + ... + 6520.

Almost surely, 2^20877832 is an apocalyptic number.

It is an amenable number.

20877832 is a deficient number, since it is larger than the sum of its proper divisors (18384308).

20877832 is a wasteful number, since it uses less digits than its factorization.

20877832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7752 (or 7748 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 20877832 is about 4569.2266304048. The cubic root of 20877832 is about 275.3563732372.

The spelling of 20877832 in words is "twenty million, eight hundred seventy-seven thousand, eight hundred thirty-two".