76740431 has 8 divisors (see below), whose sum is σ = 81336960. Its totient is φ = 72153088.

The previous prime is 76740427. The next prime is 76740437. The reversal of 76740431 is 13404767.

It is a happy number.

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 76740431 - 2² = 76740427 is a prime.

It is a super-2 number, since 2×76740431² = 11778187500131522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76740437) 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, 22895 + ... + 26031.

It is an arithmetic number, because the mean of its divisors is an integer number (10167120).

Almost surely, 2^76740431 is an apocalyptic number.

76740431 is a deficient number, since it is larger than the sum of its proper divisors (4596529).

76740431 is a wasteful number, since it uses less digits than its factorization.

76740431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4593.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 76740431 is about 8760.1615852677. The cubic root of 76740431 is about 424.9535007951.

The spelling of 76740431 in words is "seventy-six million, seven hundred forty thousand, four hundred thirty-one".