77388804 has 24 divisors (see below), whose sum is σ = 200637920. Its totient is φ = 25796232.

The previous prime is 77388799. The next prime is 77388821. The reversal of 77388804 is 40888377.

It is a self number, because there is not a number n which added to its sum of digits gives 77388804.

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, 358174 + ... + 358389.

Almost surely, 2^77388804 is an apocalyptic number.

It is an amenable number.

77388804 is an abundant number, since it is smaller than the sum of its proper divisors (123249116).

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

77388804 is a wasteful number, since it uses less digits than its factorization.

77388804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716576 (or 716568 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 77388804 is about 8797.0906554383. The cubic root of 77388804 is about 426.1469439514.

The spelling of 77388804 in words is "seventy-seven million, three hundred eighty-eight thousand, eight hundred four".