76726331 has 4 divisors (see below), whose sum is σ = 83701464. Its totient is φ = 69751200.

The previous prime is 76726327. The next prime is 76726337. The reversal of 76726331 is 13362767.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 76726331 - 2² = 76726327 is a prime.

It is a super-2 number, since 2×76726331² = 11773859737443122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 76726291 and 76726300.

It is not an unprimeable number, because it can be changed into a prime (76726337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3487550 + ... + 3487571.

It is an arithmetic number, because the mean of its divisors is an integer number (20925366).

Almost surely, 2^76726331 is an apocalyptic number.

76726331 is a deficient number, since it is larger than the sum of its proper divisors (6975133).

76726331 is a wasteful number, since it uses less digits than its factorization.

76726331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6975132.

The product of its digits is 31752, while the sum is 35.

The square root of 76726331 is about 8759.3567686218. The cubic root of 76726331 is about 424.9274727449.

The spelling of 76726331 in words is "seventy-six million, seven hundred twenty-six thousand, three hundred thirty-one".