76012909 has 4 divisors (see below), whose sum is σ = 86871904. Its totient is φ = 65153916.

The previous prime is 76012897. The next prime is 76012987. The reversal of 76012909 is 90921067.

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, and also an emirpimes, since its reverse is a distinct semiprime: 90921067 = 41 ⋅2217587.

It is a cyclic number.

It is not a de Polignac number, because 76012909 - 2⁵ = 76012877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76012109) 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, 5429487 + ... + 5429500.

It is an arithmetic number, because the mean of its divisors is an integer number (21717976).

Almost surely, 2^76012909 is an apocalyptic number.

It is an amenable number.

76012909 is a deficient number, since it is larger than the sum of its proper divisors (10858995).

76012909 is a wasteful number, since it uses less digits than its factorization.

76012909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10858994.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 76012909 is about 8718.5382375717. The cubic root of 76012909 is about 423.6063396321.

The spelling of 76012909 in words is "seventy-six million, twelve thousand, nine hundred nine".