77874804 has 96 divisors (see below), whose sum is σ = 232243200. Its totient is φ = 22105440.

The previous prime is 77874793. The next prime is 77874809. The reversal of 77874804 is 40847877.

It is a self number, because there is not a number n which added to its sum of digits gives 77874804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77874809) 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 31 ways as a sum of consecutive naturals, for example, 180469 + ... + 180899.

It is an arithmetic number, because the mean of its divisors is an integer number (2419200).

Almost surely, 2^77874804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77874804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116121600).

77874804 is an abundant number, since it is smaller than the sum of its proper divisors (154368396).

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

77874804 is a wasteful number, since it uses less digits than its factorization.

77874804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690 (or 682 counting only the distinct ones).

The product of its (nonzero) digits is 351232, while the sum is 45.

The square root of 77874804 is about 8824.6701921375. The cubic root of 77874804 is about 427.0371475597.

The spelling of 77874804 in words is "seventy-seven million, eight hundred seventy-four thousand, eight hundred four".