77381652 has 48 divisors (see below), whose sum is σ = 186327680. Its totient is φ = 24976512.

The previous prime is 77381641. The next prime is 77381687. The reversal of 77381652 is 25618377.

It is a super-3 number, since 3×77381652³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 77381652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176049 + ... + 176487.

Almost surely, 2^77381652 is an apocalyptic number.

It is an amenable number.

77381652 is an abundant number, since it is smaller than the sum of its proper divisors (108946028).

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

77381652 is a wasteful number, since it uses less digits than its factorization.

77381652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880 (or 878 counting only the distinct ones).

The product of its digits is 70560, while the sum is 39.

The square root of 77381652 is about 8796.6841480185. The cubic root of 77381652 is about 426.1338158817.

The spelling of 77381652 in words is "seventy-seven million, three hundred eighty-one thousand, six hundred fifty-two".