76724747 has 8 divisors (see below), whose sum is σ = 83764800. Its totient is φ = 69695560.

The previous prime is 76724741. The next prime is 76724759. The reversal of 76724747 is 74742767.

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

It is not a de Polignac number, because 76724747 - 2⁴ = 76724731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76724698 and 76724707.

It is not an unprimeable number, because it can be changed into a prime (76724741) 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, 21428 + ... + 24750.

It is an arithmetic number, because the mean of its divisors is an integer number (10470600).

Almost surely, 2^76724747 is an apocalyptic number.

76724747 is a deficient number, since it is larger than the sum of its proper divisors (7040053).

76724747 is a wasteful number, since it uses less digits than its factorization.

76724747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5433.

The product of its digits is 460992, while the sum is 44.

The square root of 76724747 is about 8759.2663505570. The cubic root of 76724747 is about 424.9245485434.

The spelling of 76724747 in words is "seventy-six million, seven hundred twenty-four thousand, seven hundred forty-seven".