76609725 has 12 divisors (see below), whose sum is σ = 126661536. Its totient is φ = 40858480.

The previous prime is 76609723. The next prime is 76609733. The reversal of 76609725 is 52790667.

It is a happy number.

It is not a de Polignac number, because 76609725 - 2¹ = 76609723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76609723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 510657 + ... + 510806.

It is an arithmetic number, because the mean of its divisors is an integer number (10555128).

Almost surely, 2^76609725 is an apocalyptic number.

76609725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

76609725 is a deficient number, since it is larger than the sum of its proper divisors (50051811).

76609725 is a wasteful number, since it uses less digits than its factorization.

76609725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021476 (or 1021471 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 42.

The square root of 76609725 is about 8752.6981554261. The cubic root of 76609725 is about 424.7121002886.

The spelling of 76609725 in words is "seventy-six million, six hundred nine thousand, seven hundred twenty-five".