76649613 has 8 divisors (see below), whose sum is σ = 103192128. Its totient is φ = 50603424.

The previous prime is 76649579. The next prime is 76649659. The reversal of 76649613 is 31694667.

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

It is not a de Polignac number, because 76649613 - 2⁸ = 76649357 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76649113) 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, 123720 + ... + 124337.

It is an arithmetic number, because the mean of its divisors is an integer number (12899016).

Almost surely, 2^76649613 is an apocalyptic number.

It is an amenable number.

76649613 is a deficient number, since it is larger than the sum of its proper divisors (26542515).

76649613 is a wasteful number, since it uses less digits than its factorization.

76649613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248163.

The product of its digits is 163296, while the sum is 42.

The square root of 76649613 is about 8754.9764705566. The cubic root of 76649613 is about 424.7857984034.

The spelling of 76649613 in words is "seventy-six million, six hundred forty-nine thousand, six hundred thirteen".