64320079 has 2 divisors, whose sum is σ = 64320080. Its totient is φ = 64320078.

The previous prime is 64320077. The next prime is 64320127. The reversal of 64320079 is 97002346.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64320079 - 2¹ = 64320077 is a prime.

Together with 64320077, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 64320079.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64320077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32160039 + 32160040.

It is an arithmetic number, because the mean of its divisors is an integer number (32160040).

Almost surely, 2^64320079 is an apocalyptic number.

64320079 is a deficient number, since it is larger than the sum of its proper divisors (1).

64320079 is an equidigital number, since it uses as much as digits as its factorization.

64320079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 64320079 is about 8019.9799875062. The cubic root of 64320079 is about 400.6657226687.

The spelling of 64320079 in words is "sixty-four million, three hundred twenty thousand, seventy-nine".