76926509 has 4 divisors (see below), whose sum is σ = 83919840. Its totient is φ = 69933180.

The previous prime is 76926491. The next prime is 76926511. The reversal of 76926509 is 90562967.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 76926509 - 2⁸ = 76926253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76926509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76926599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3496649 + ... + 3496670.

It is an arithmetic number, because the mean of its divisors is an integer number (20979960).

Almost surely, 2^76926509 is an apocalyptic number.

It is an amenable number.

76926509 is a deficient number, since it is larger than the sum of its proper divisors (6993331).

76926509 is a wasteful number, since it uses less digits than its factorization.

76926509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6993330.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 76926509 is about 8770.7758493762. The cubic root of 76926509 is about 425.2966952491.

The spelling of 76926509 in words is "seventy-six million, nine hundred twenty-six thousand, five hundred nine".