76413731 has 4 divisors (see below), whose sum is σ = 76431264. Its totient is φ = 76396200.

The previous prime is 76413713. The next prime is 76413749. The reversal of 76413731 is 13731467.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (76413713) and next prime (76413749).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76413731 is a prime.

It is a super-2 number, since 2×76413731² = 11678116570680722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76413761) 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, 3401 + ... + 12821.

It is an arithmetic number, because the mean of its divisors is an integer number (19107816).

Almost surely, 2^76413731 is an apocalyptic number.

76413731 is a deficient number, since it is larger than the sum of its proper divisors (17533).

76413731 is an equidigital number, since it uses as much as digits as its factorization.

76413731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17532.

The product of its digits is 10584, while the sum is 32.

The square root of 76413731 is about 8741.4947806425. The cubic root of 76413731 is about 424.3496044879.

The spelling of 76413731 in words is "seventy-six million, four hundred thirteen thousand, seven hundred thirty-one".