76486531 has 16 divisors (see below), whose sum is σ = 85662720. Its totient is φ = 67697280.

The previous prime is 76486513. The next prime is 76486549. The reversal of 76486531 is 13568467.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (76486513) and next prime (76486549).

It is a cyclic number.

It is not a de Polignac number, because 76486531 - 2⁹ = 76486019 is a prime.

It is a super-2 number, since 2×76486531² = 11700378848827922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76486591) 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 15 ways as a sum of consecutive naturals, for example, 174010 + ... + 174448.

It is an arithmetic number, because the mean of its divisors is an integer number (5353920).

Almost surely, 2^76486531 is an apocalyptic number.

76486531 is a deficient number, since it is larger than the sum of its proper divisors (9176189).

76486531 is a wasteful number, since it uses less digits than its factorization.

76486531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834.

The product of its digits is 120960, while the sum is 40.

The square root of 76486531 is about 8745.6578368925. The cubic root of 76486531 is about 424.4843221860.

The spelling of 76486531 in words is "seventy-six million, four hundred eighty-six thousand, five hundred thirty-one".