77977113 has 12 divisors (see below), whose sum is σ = 110446320. Its totient is φ = 48926272.

The previous prime is 77977073. The next prime is 77977127. The reversal of 77977113 is 31177977.

It is not a de Polignac number, because 77977113 - 2⁶ = 77977049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77977013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44103 + ... + 45836.

It is an arithmetic number, because the mean of its divisors is an integer number (9203860).

Almost surely, 2^77977113 is an apocalyptic number.

It is an amenable number.

77977113 is a deficient number, since it is larger than the sum of its proper divisors (32469207).

77977113 is a wasteful number, since it uses less digits than its factorization.

77977113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89976 (or 89959 counting only the distinct ones).

The product of its digits is 64827, while the sum is 42.

The square root of 77977113 is about 8830.4650500412. The cubic root of 77977113 is about 427.2240741932.

The spelling of 77977113 in words is "seventy-seven million, nine hundred seventy-seven thousand, one hundred thirteen".