64389079 has 2 divisors, whose sum is σ = 64389080. Its totient is φ = 64389078.

The previous prime is 64389067. The next prime is 64389089. The reversal of 64389079 is 97098346.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64389079 - 2¹⁵ = 64356311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64389089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32194539 + 32194540.

It is an arithmetic number, because the mean of its divisors is an integer number (32194540).

Almost surely, 2^64389079 is an apocalyptic number.

64389079 is a deficient number, since it is larger than the sum of its proper divisors (1).

64389079 is an equidigital number, since it uses as much as digits as its factorization.

64389079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 64389079 is about 8024.2805908069. The cubic root of 64389079 is about 400.8089441705.

The spelling of 64389079 in words is "sixty-four million, three hundred eighty-nine thousand, seventy-nine".