64398007 has 2 divisors, whose sum is σ = 64398008. Its totient is φ = 64398006.

The previous prime is 64397987. The next prime is 64398013. The reversal of 64398007 is 70089346.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64398007 - 2²³ = 56009399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64398097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32199003 + 32199004.

It is an arithmetic number, because the mean of its divisors is an integer number (32199004).

Almost surely, 2^64398007 is an apocalyptic number.

64398007 is a deficient number, since it is larger than the sum of its proper divisors (1).

64398007 is an equidigital number, since it uses as much as digits as its factorization.

64398007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 64398007 is about 8024.8368830774. The cubic root of 64398007 is about 400.8274683101.

The spelling of 64398007 in words is "sixty-four million, three hundred ninety-eight thousand, seven".