77616852 has 24 divisors (see below), whose sum is σ = 181662432. Its totient is φ = 25792800.

The previous prime is 77616841. The next prime is 77616853. The reversal of 77616852 is 25861677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77616853) 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, 5799 + ... + 13742.

It is an arithmetic number, because the mean of its divisors is an integer number (7569268).

Almost surely, 2^77616852 is an apocalyptic number.

It is an amenable number.

77616852 is an abundant number, since it is smaller than the sum of its proper divisors (104045580).

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

77616852 is a wasteful number, since it uses less digits than its factorization.

77616852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19879 (or 19877 counting only the distinct ones).

The product of its digits is 141120, while the sum is 42.

The square root of 77616852 is about 8810.0426786707. The cubic root of 77616852 is about 426.5651209623.

The spelling of 77616852 in words is "seventy-seven million, six hundred sixteen thousand, eight hundred fifty-two".