77819052 has 48 divisors (see below), whose sum is σ = 191020032. Its totient is φ = 24623040.

The previous prime is 77819023. The next prime is 77819101. The reversal of 77819052 is 25091877.

It is a self number, because there is not a number n which added to its sum of digits gives 77819052.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17743 + ... + 21689.

It is an arithmetic number, because the mean of its divisors is an integer number (3979584).

Almost surely, 2^77819052 is an apocalyptic number.

It is an amenable number.

77819052 is an abundant number, since it is smaller than the sum of its proper divisors (113200980).

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

77819052 is a wasteful number, since it uses less digits than its factorization.

77819052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4038 (or 4036 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 77819052 is about 8821.5107549671. The cubic root of 77819052 is about 426.9352153229.

The spelling of 77819052 in words is "seventy-seven million, eight hundred nineteen thousand, fifty-two".