76599769 has 2 divisors, whose sum is σ = 76599770. Its totient is φ = 76599768.

The previous prime is 76599751. The next prime is 76599779. The reversal of 76599769 is 96799567.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38900169 + 37699600 = 6237^2 + 6140^2 .

It is an emirp because it is prime and its reverse (96799567) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76599769 - 2¹³ = 76591577 is a prime.

It is a super-2 number, since 2×76599769² = 11735049221706722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (76599709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38299884 + 38299885.

It is an arithmetic number, because the mean of its divisors is an integer number (38299885).

Almost surely, 2^76599769 is an apocalyptic number.

It is an amenable number.

76599769 is a deficient number, since it is larger than the sum of its proper divisors (1).

76599769 is an equidigital number, since it uses as much as digits as its factorization.

76599769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6429780, while the sum is 58.

The square root of 76599769 is about 8752.1293980379. The cubic root of 76599769 is about 424.6937013327.

The spelling of 76599769 in words is "seventy-six million, five hundred ninety-nine thousand, seven hundred sixty-nine".