76912817 has 4 divisors (see below), whose sum is σ = 80960880. Its totient is φ = 72864756.

The previous prime is 76912799. The next prime is 76912831. The reversal of 76912817 is 71821967.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 76912817 - 2¹⁴ = 76896433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76912837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2024003 + ... + 2024040.

It is an arithmetic number, because the mean of its divisors is an integer number (20240220).

Almost surely, 2^76912817 is an apocalyptic number.

It is an amenable number.

76912817 is a deficient number, since it is larger than the sum of its proper divisors (4048063).

76912817 is a wasteful number, since it uses less digits than its factorization.

76912817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4048062.

The product of its digits is 42336, while the sum is 41.

The square root of 76912817 is about 8769.9952679577. The cubic root of 76912817 is about 425.2714611742.

The spelling of 76912817 in words is "seventy-six million, nine hundred twelve thousand, eight hundred seventeen".