76801913 has 12 divisors (see below), whose sum is σ = 79846740. Its totient is φ = 73858176.

The previous prime is 76801909. The next prime is 76801931. The reversal of 76801913 is 31910867.

It can be written as a sum of positive squares in 2 ways, for example, as 27071209 + 49730704 = 5203^2 + 7052^2 .

It is not a de Polignac number, because 76801913 - 2² = 76801909 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76801993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134693 + ... + 135261.

It is an arithmetic number, because the mean of its divisors is an integer number (6653895).

Almost surely, 2^76801913 is an apocalyptic number.

76801913 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

76801913 is a deficient number, since it is larger than the sum of its proper divisors (3044827).

76801913 is an equidigital number, since it uses as much as digits as its factorization.

76801913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 76801913 is about 8763.6700645335. The cubic root of 76801913 is about 425.0669569247.

The spelling of 76801913 in words is "seventy-six million, eight hundred one thousand, nine hundred thirteen".