867977913 has 16 divisors (see below), whose sum is σ = 1293308352. Its totient is φ = 513216000.

The previous prime is 867977909. The next prime is 867977921. The reversal of 867977913 is 319779768.

It is not a de Polignac number, because 867977913 - 2² = 867977909 is a prime.

It is not an unprimeable number, because it can be changed into a prime (867977923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319408 + ... + 322113.

It is an arithmetic number, because the mean of its divisors is an integer number (80831772).

Almost surely, 2^867977913 is an apocalyptic number.

It is an amenable number.

867977913 is a deficient number, since it is larger than the sum of its proper divisors (425330439).

867977913 is a wasteful number, since it uses less digits than its factorization.

867977913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641576.

The product of its digits is 4000752, while the sum is 57.

The square root of 867977913 is about 29461.4648821134. The cubic root of 867977913 is about 953.9000934806.

The spelling of 867977913 in words is "eight hundred sixty-seven million, nine hundred seventy-seven thousand, nine hundred thirteen".