77023764 has 24 divisors (see below), whose sum is σ = 199691520. Its totient is φ = 25674552.

The previous prime is 77023763. The next prime is 77023781. The reversal of 77023764 is 46732077.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77023763) 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, 356484 + ... + 356699.

It is an arithmetic number, because the mean of its divisors is an integer number (8320480).

Almost surely, 2^77023764 is an apocalyptic number.

It is an amenable number.

77023764 is an abundant number, since it is smaller than the sum of its proper divisors (122667756).

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

77023764 is a wasteful number, since it uses less digits than its factorization.

77023764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713196 (or 713188 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The square root of 77023764 is about 8776.3183625026. The cubic root of 77023764 is about 425.4758481055.

The spelling of 77023764 in words is "seventy-seven million, twenty-three thousand, seven hundred sixty-four".