77879064 has 32 divisors (see below), whose sum is σ = 195833520. Its totient is φ = 25808256.

The previous prime is 77879033. The next prime is 77879077. The reversal of 77879064 is 46097877.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5227 + ... + 13530.

Almost surely, 2^77879064 is an apocalyptic number.

It is an amenable number.

77879064 is an abundant number, since it is smaller than the sum of its proper divisors (117954456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77879064 is a wasteful number, since it uses less digits than its factorization.

77879064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18939 (or 18935 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 48.

The square root of 77879064 is about 8824.9115576305. The cubic root of 77879064 is about 427.0449341821.

The spelling of 77879064 in words is "seventy-seven million, eight hundred seventy-nine thousand, sixty-four".