76709231 has 2 divisors, whose sum is σ = 76709232. Its totient is φ = 76709230.

The previous prime is 76709207. The next prime is 76709273. The reversal of 76709231 is 13290767.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76709231 - 2⁶ = 76709167 is a prime.

It is a super-2 number, since 2×76709231² = 11768612241222722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 76709191 and 76709200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76709431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38354615 + 38354616.

It is an arithmetic number, because the mean of its divisors is an integer number (38354616).

Almost surely, 2^76709231 is an apocalyptic number.

76709231 is a deficient number, since it is larger than the sum of its proper divisors (1).

76709231 is an equidigital number, since it uses as much as digits as its factorization.

76709231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 76709231 is about 8758.3806151594. The cubic root of 76709231 is about 424.8959025326.

Adding to 76709231 its reverse (13290767), we get a palindrome (89999998).

The spelling of 76709231 in words is "seventy-six million, seven hundred nine thousand, two hundred thirty-one".