77368365 has 20 divisors (see below), whose sum is σ = 138690684. Its totient is φ = 41262912.

The previous prime is 77368351. The next prime is 77368381. The reversal of 77368365 is 56386377.

It can be written as a sum of positive squares in 2 ways, for example, as 60746436 + 16621929 = 7794^2 + 4077^2 .

It is not a de Polignac number, because 77368365 - 2⁶ = 77368301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 77368365.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 95112 + ... + 95921.

Almost surely, 2^77368365 is an apocalyptic number.

It is an amenable number.

77368365 is a deficient number, since it is larger than the sum of its proper divisors (61322319).

77368365 is a wasteful number, since it uses less digits than its factorization.

77368365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191050 (or 191041 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 77368365 is about 8795.9288878435. The cubic root of 77368365 is about 426.1094243799.

The spelling of 77368365 in words is "seventy-seven million, three hundred sixty-eight thousand, three hundred sixty-five".