77671013 has 8 divisors (see below), whose sum is σ = 88880832. Its totient is φ = 66489696.

The previous prime is 77671007. The next prime is 77671021. The reversal of 77671013 is 31017677.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 77671013 - 2⁸ = 77670757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77671003) by changing a digit.

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, 920 + ... + 12497.

It is an arithmetic number, because the mean of its divisors is an integer number (11110104).

Almost surely, 2^77671013 is an apocalyptic number.

It is an amenable number.

77671013 is a deficient number, since it is larger than the sum of its proper divisors (11209819).

77671013 is a wasteful number, since it uses less digits than its factorization.

77671013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14251.

The product of its (nonzero) digits is 6174, while the sum is 32.

The square root of 77671013 is about 8813.1159642887. The cubic root of 77671013 is about 426.6643168680.

The spelling of 77671013 in words is "seventy-seven million, six hundred seventy-one thousand, thirteen".