76230509 has 2 divisors, whose sum is σ = 76230510. Its totient is φ = 76230508.

The previous prime is 76230493. The next prime is 76230571. The reversal of 76230509 is 90503267.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74046025 + 2184484 = 8605^2 + 1478^2 .

It is an emirp because it is prime and its reverse (90503267) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76230509 - 2⁴ = 76230493 is a prime.

It is a super-2 number, since 2×76230509² = 11622181004798162, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76230599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38115254 + 38115255.

It is an arithmetic number, because the mean of its divisors is an integer number (38115255).

Almost surely, 2^76230509 is an apocalyptic number.

It is an amenable number.

76230509 is a deficient number, since it is larger than the sum of its proper divisors (1).

76230509 is an equidigital number, since it uses as much as digits as its factorization.

76230509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 76230509 is about 8731.0084755428. The cubic root of 76230509 is about 424.0101698196.

The spelling of 76230509 in words is "seventy-six million, two hundred thirty thousand, five hundred nine".