76652509 has 2 divisors, whose sum is σ = 76652510. Its totient is φ = 76652508.

The previous prime is 76652467. The next prime is 76652519. The reversal of 76652509 is 90525667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66748900 + 9903609 = 8170^2 + 3147^2 .

It is a cyclic number.

It is not a de Polignac number, because 76652509 - 2¹³ = 76644317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76652519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38326254 + 38326255.

It is an arithmetic number, because the mean of its divisors is an integer number (38326255).

Almost surely, 2^76652509 is an apocalyptic number.

It is an amenable number.

76652509 is a deficient number, since it is larger than the sum of its proper divisors (1).

76652509 is an equidigital number, since it uses as much as digits as its factorization.

76652509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 76652509 is about 8755.1418606439. The cubic root of 76652509 is about 424.7911481333.

The spelling of 76652509 in words is "seventy-six million, six hundred fifty-two thousand, five hundred nine".