76118813 has 2 divisors, whose sum is σ = 76118814. Its totient is φ = 76118812.

The previous prime is 76118797. The next prime is 76118821. The reversal of 76118813 is 31881167.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75568249 + 550564 = 8693^2 + 742^2 .

It is a cyclic number.

It is not a de Polignac number, because 76118813 - 2⁴ = 76118797 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76118873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38059406 + 38059407.

It is an arithmetic number, because the mean of its divisors is an integer number (38059407).

Almost surely, 2^76118813 is an apocalyptic number.

76118813 is the 4664-th centered heptagonal number.

It is an amenable number.

76118813 is a deficient number, since it is larger than the sum of its proper divisors (1).

76118813 is an equidigital number, since it uses as much as digits as its factorization.

76118813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 35.

The square root of 76118813 is about 8724.6096187738. The cubic root of 76118813 is about 423.8029763534.

The spelling of 76118813 in words is "seventy-six million, one hundred eighteen thousand, eight hundred thirteen".