76409523 has 6 divisors (see below), whose sum is σ = 110369324. Its totient is φ = 50939676.

The previous prime is 76409497. The next prime is 76409533. The reversal of 76409523 is 32590467.

76409523 is a `hidden beast` number, since 7 + 640 + 9 + 5 + 2 + 3 = 666.

It is not a de Polignac number, because 76409523 - 2⁵ = 76409491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76409533) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4244965 + ... + 4244982.

Almost surely, 2^76409523 is an apocalyptic number.

76409523 is a deficient number, since it is larger than the sum of its proper divisors (33959801).

76409523 is a wasteful number, since it uses less digits than its factorization.

76409523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8489953 (or 8489950 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 76409523 is about 8741.2540862281. The cubic root of 76409523 is about 424.3418148935.

The spelling of 76409523 in words is "seventy-six million, four hundred nine thousand, five hundred twenty-three".