77368646 has 8 divisors (see below), whose sum is σ = 122161080. Its totient is φ = 36648288.

The previous prime is 77368639. The next prime is 77368657. The reversal of 77368646 is 64686377.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 77368646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1017971 + ... + 1018046.

It is an arithmetic number, because the mean of its divisors is an integer number (15270135).

Almost surely, 2^77368646 is an apocalyptic number.

77368646 is a deficient number, since it is larger than the sum of its proper divisors (44792434).

77368646 is a wasteful number, since it uses less digits than its factorization.

77368646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036038.

The product of its digits is 1016064, while the sum is 47.

The square root of 77368646 is about 8795.9448611278. The cubic root of 77368646 is about 426.1099402523.

The spelling of 77368646 in words is "seventy-seven million, three hundred sixty-eight thousand, six hundred forty-six".