76361309 has 2 divisors, whose sum is σ = 76361310. Its totient is φ = 76361308.

The previous prime is 76361293. The next prime is 76361317. The reversal of 76361309 is 90316367.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58905625 + 17455684 = 7675^2 + 4178^2 .

It is a cyclic number.

It is not a de Polignac number, because 76361309 - 2⁴ = 76361293 is a prime.

It is equal to p_4469426 and since 76361309 and 4469426 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76361009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38180654 + 38180655.

It is an arithmetic number, because the mean of its divisors is an integer number (38180655).

Almost surely, 2^76361309 is an apocalyptic number.

It is an amenable number.

76361309 is a deficient number, since it is larger than the sum of its proper divisors (1).

76361309 is an equidigital number, since it uses as much as digits as its factorization.

76361309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 76361309 is about 8738.4958087762. The cubic root of 76361309 is about 424.2525436430.

The spelling of 76361309 in words is "seventy-six million, three hundred sixty-one thousand, three hundred nine".