76506631 has 4 divisors (see below), whose sum is σ = 76604632. Its totient is φ = 76408632.

The previous prime is 76506629. The next prime is 76506641. The reversal of 76506631 is 13660567.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13660567 = 3461 ⋅3947.

It is a cyclic number.

It is not a de Polignac number, because 76506631 - 2¹ = 76506629 is a prime.

It is a super-2 number, since 2×76506631² = 11706529173940322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76506641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47820 + ... + 49393.

It is an arithmetic number, because the mean of its divisors is an integer number (19151158).

Almost surely, 2^76506631 is an apocalyptic number.

76506631 is a deficient number, since it is larger than the sum of its proper divisors (98001).

76506631 is an equidigital number, since it uses as much as digits as its factorization.

76506631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98000.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 76506631 is about 8746.8069030933. The cubic root of 76506631 is about 424.5215025343.

The spelling of 76506631 in words is "seventy-six million, five hundred six thousand, six hundred thirty-one".