77315693 has 32 divisors (see below), whose sum is σ = 101418240. Its totient is φ = 57231360.

The previous prime is 77315683. The next prime is 77315701. The reversal of 77315693 is 39651377.

It is a cyclic number.

It is not a de Polignac number, because 77315693 - 2⁶ = 77315629 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 77315693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77315683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167483 + ... + 167943.

It is an arithmetic number, because the mean of its divisors is an integer number (3169320).

Almost surely, 2^77315693 is an apocalyptic number.

It is an amenable number.

77315693 is a deficient number, since it is larger than the sum of its proper divisors (24102547).

77315693 is a wasteful number, since it uses less digits than its factorization.

77315693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597.

The product of its digits is 119070, while the sum is 41.

The square root of 77315693 is about 8792.9342656476. The cubic root of 77315693 is about 426.0127046987.

The spelling of 77315693 in words is "seventy-seven million, three hundred fifteen thousand, six hundred ninety-three".