76516631 has 4 divisors (see below), whose sum is σ = 77771064. Its totient is φ = 75262200.

The previous prime is 76516543. The next prime is 76516637. The reversal of 76516631 is 13661567.

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: 13661567 = 241 ⋅56687.

It is a cyclic number.

It is not a de Polignac number, because 76516631 - 2¹⁴ = 76500247 is a prime.

It is a super-2 number, since 2×76516631² = 11709589639180322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76516591 and 76516600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76516637) 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, 627125 + ... + 627246.

It is an arithmetic number, because the mean of its divisors is an integer number (19442766).

Almost surely, 2^76516631 is an apocalyptic number.

76516631 is a deficient number, since it is larger than the sum of its proper divisors (1254433).

76516631 is a wasteful number, since it uses less digits than its factorization.

76516631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254432.

The product of its digits is 22680, while the sum is 35.

The square root of 76516631 is about 8747.3785215915. The cubic root of 76516631 is about 424.5399977942.

The spelling of 76516631 in words is "seventy-six million, five hundred sixteen thousand, six hundred thirty-one".