76649590 has 16 divisors (see below), whose sum is σ = 138743280. Its totient is φ = 30487840.

The previous prime is 76649579. The next prime is 76649659. The reversal of 76649590 is 9594667.

It is a self number, because there is not a number n which added to its sum of digits gives 76649590.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19621 + ... + 23200.

It is an arithmetic number, because the mean of its divisors is an integer number (8671455).

Almost surely, 2^76649590 is an apocalyptic number.

76649590 is a deficient number, since it is larger than the sum of its proper divisors (62093690).

76649590 is a wasteful number, since it uses less digits than its factorization.

76649590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43007.

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 76649590 is about 8754.9751570179. The cubic root of 76649590 is about 424.7857559154.

The spelling of 76649590 in words is "seventy-six million, six hundred forty-nine thousand, five hundred ninety".