76724742 has 16 divisors (see below), whose sum is σ = 153538560. Its totient is φ = 25560072.

The previous prime is 76724741. The next prime is 76724759. The reversal of 76724742 is 24742767.

It is a self number, because there is not a number n which added to its sum of digits gives 76724742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76724741) 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 7 ways as a sum of consecutive naturals, for example, 13963 + ... + 18665.

It is an arithmetic number, because the mean of its divisors is an integer number (9596160).

Almost surely, 2^76724742 is an apocalyptic number.

76724742 is an abundant number, since it is smaller than the sum of its proper divisors (76813818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76724742 is a wasteful number, since it uses less digits than its factorization.

76724742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7427.

The product of its digits is 131712, while the sum is 39.

The square root of 76724742 is about 8759.2660651450. The cubic root of 76724742 is about 424.9245393129.

The spelling of 76724742 in words is "seventy-six million, seven hundred twenty-four thousand, seven hundred forty-two".