76650769 has 12 divisors (see below), whose sum is σ = 87125556. Its totient is φ = 67026528.

The previous prime is 76650757. The next prime is 76650781. The reversal of 76650769 is 96705667.

It is an interprime number because it is at equal distance from previous prime (76650757) and next prime (76650781).

It can be written as a sum of positive squares in 2 ways, for example, as 8340544 + 68310225 = 2888^2 + 8265^2 .

It is not a de Polignac number, because 76650769 - 2⁷ = 76650641 is a prime.

It is a super-2 number, since 2×76650769² = 11750680776582722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76650719) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3474 + ... + 12859.

It is an arithmetic number, because the mean of its divisors is an integer number (7260463).

Almost surely, 2^76650769 is an apocalyptic number.

It is an amenable number.

76650769 is a deficient number, since it is larger than the sum of its proper divisors (10474787).

76650769 is a wasteful number, since it uses less digits than its factorization.

76650769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16384 (or 16365 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 46.

The square root of 76650769 is about 8755.0424899026. The cubic root of 76650769 is about 424.7879338781.

The spelling of 76650769 in words is "seventy-six million, six hundred fifty thousand, seven hundred sixty-nine".