76513819 has 2 divisors, whose sum is σ = 76513820. Its totient is φ = 76513818.

The previous prime is 76513807. The next prime is 76513841. The reversal of 76513819 is 91831567.

It is a weak prime.

It is an emirp because it is prime and its reverse (91831567) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76513819 - 2⁷ = 76513691 is a prime.

It is a super-2 number, since 2×76513819² = 11708728995929522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (76513849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38256909 + 38256910.

It is an arithmetic number, because the mean of its divisors is an integer number (38256910).

Almost surely, 2^76513819 is an apocalyptic number.

76513819 is a deficient number, since it is larger than the sum of its proper divisors (1).

76513819 is an equidigital number, since it uses as much as digits as its factorization.

76513819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 40.

The square root of 76513819 is about 8747.2177862449. The cubic root of 76513819 is about 424.5347970900.

The spelling of 76513819 in words is "seventy-six million, five hundred thirteen thousand, eight hundred nineteen".