867977648 has 20 divisors (see below), whose sum is σ = 1682974128. Its totient is φ = 433661760.

The previous prime is 867977639. The next prime is 867977681. The reversal of 867977648 is 846779768.

867977648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×867977648² = 1506770394855223808, which contains 22 as substring.

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, 2213 + ... + 41723.

Almost surely, 2^867977648 is an apocalyptic number.

It is an amenable number.

867977648 is a deficient number, since it is larger than the sum of its proper divisors (814996480).

867977648 is a wasteful number, since it uses less digits than its factorization.

867977648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40892 (or 40886 counting only the distinct ones).

The product of its digits is 28449792, while the sum is 62.

The square root of 867977648 is about 29461.4603847128. The cubic root of 867977648 is about 953.8999964030.

The spelling of 867977648 in words is "eight hundred sixty-seven million, nine hundred seventy-seven thousand, six hundred forty-eight".