20876877 has 48 divisors (see below), whose sum is σ = 36840960. Its totient is φ = 11127456.

The previous prime is 20876861. The next prime is 20876899. The reversal of 20876877 is 77867802.

It is not a de Polignac number, because 20876877 - 2⁴ = 20876861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20877877) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 127998 + ... + 128160.

It is an arithmetic number, because the mean of its divisors is an integer number (767520).

Almost surely, 2^20876877 is an apocalyptic number.

It is an amenable number.

20876877 is a deficient number, since it is larger than the sum of its proper divisors (15964083).

20876877 is a wasteful number, since it uses less digits than its factorization.

20876877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 45.

The square root of 20876877 is about 4569.1221257480. The cubic root of 20876877 is about 275.3521746955.

The spelling of 20876877 in words is "twenty million, eight hundred seventy-six thousand, eight hundred seventy-seven".