76928565 has 16 divisors (see below), whose sum is σ = 140669568. Its totient is φ = 35167296.

The previous prime is 76928557. The next prime is 76928567. The reversal of 76928565 is 56582967.

It is a happy number.

It is not a de Polignac number, because 76928565 - 2³ = 76928557 is a prime.

It is a super-2 number, since 2×76928565² = 11836008225918450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76928567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366222 + ... + 366431.

It is an arithmetic number, because the mean of its divisors is an integer number (8791848).

Almost surely, 2^76928565 is an apocalyptic number.

It is an amenable number.

76928565 is a deficient number, since it is larger than the sum of its proper divisors (63741003).

76928565 is a wasteful number, since it uses less digits than its factorization.

76928565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732668.

The product of its digits is 907200, while the sum is 48.

The square root of 76928565 is about 8770.8930560120. The cubic root of 76928565 is about 425.3004841563.

The spelling of 76928565 in words is "seventy-six million, nine hundred twenty-eight thousand, five hundred sixty-five".