20077868 has 12 divisors (see below), whose sum is σ = 35274792. Its totient is φ = 9999360.

The previous prime is 20077859. The next prime is 20077903. The reversal of 20077868 is 86877002.

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, 8738 + ... + 10793.

It is an arithmetic number, because the mean of its divisors is an integer number (2939566).

Almost surely, 2^20077868 is an apocalyptic number.

It is an amenable number.

20077868 is a deficient number, since it is larger than the sum of its proper divisors (15196924).

20077868 is a wasteful number, since it uses less digits than its factorization.

20077868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19792 (or 19790 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 20077868 is about 4480.8334046246. The cubic root of 20077868 is about 271.7935825789.

The spelling of 20077868 in words is "twenty million, seventy-seven thousand, eight hundred sixty-eight".