76613431 has 8 divisors (see below), whose sum is σ = 80769024. Its totient is φ = 72563160.

The previous prime is 76613419. The next prime is 76613501. The reversal of 76613431 is 13431667.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 76613431 - 2⁹ = 76612919 is a prime.

It is a super-2 number, since 2×76613431² = 11739235619183522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76613393 and 76613402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76613231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24835 + ... + 27748.

It is an arithmetic number, because the mean of its divisors is an integer number (10096128).

Almost surely, 2^76613431 is an apocalyptic number.

76613431 is a deficient number, since it is larger than the sum of its proper divisors (4155593).

76613431 is a wasteful number, since it uses less digits than its factorization.

76613431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52661.

The product of its digits is 9072, while the sum is 31.

The square root of 76613431 is about 8752.9098590126. The cubic root of 76613431 is about 424.7189486692.

The spelling of 76613431 in words is "seventy-six million, six hundred thirteen thousand, four hundred thirty-one".