76814005 has 4 divisors (see below), whose sum is σ = 92176812. Its totient is φ = 61451200.

The previous prime is 76813999. The next prime is 76814021. The reversal of 76814005 is 50041867.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50041867 = 107 ⋅467681.

It can be written as a sum of positive squares in 2 ways, for example, as 22982436 + 53831569 = 4794^2 + 7337^2 .

It is not a de Polignac number, because 76814005 - 2⁹ = 76813493 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7681396 + ... + 7681405.

It is an arithmetic number, because the mean of its divisors is an integer number (23044203).

Almost surely, 2^76814005 is an apocalyptic number.

It is an amenable number.

76814005 is a deficient number, since it is larger than the sum of its proper divisors (15362807).

76814005 is a wasteful number, since it uses less digits than its factorization.

76814005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15362806.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 76814005 is about 8764.3599309932. The cubic root of 76814005 is about 425.0892638340.

The spelling of 76814005 in words is "seventy-six million, eight hundred fourteen thousand, five".