77693113 has 2 divisors, whose sum is σ = 77693114. Its totient is φ = 77693112.

The previous prime is 77693107. The next prime is 77693123. The reversal of 77693113 is 31139677.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63313849 + 14379264 = 7957^2 + 3792^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77693113 is a prime.

It is not a weakly prime, because it can be changed into another prime (77693123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38846556 + 38846557.

It is an arithmetic number, because the mean of its divisors is an integer number (38846557).

Almost surely, 2^77693113 is an apocalyptic number.

It is an amenable number.

77693113 is a deficient number, since it is larger than the sum of its proper divisors (1).

77693113 is an equidigital number, since it uses as much as digits as its factorization.

77693113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23814, while the sum is 37.

The square root of 77693113 is about 8814.3696881853. The cubic root of 77693113 is about 426.7047797849.

The spelling of 77693113 in words is "seventy-seven million, six hundred ninety-three thousand, one hundred thirteen".