64345807 has 2 divisors, whose sum is σ = 64345808. Its totient is φ = 64345806.

The previous prime is 64345783. The next prime is 64345819. The reversal of 64345807 is 70854346.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64345807 - 2²³ = 55957199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64345847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32172903 + 32172904.

It is an arithmetic number, because the mean of its divisors is an integer number (32172904).

Almost surely, 2^64345807 is an apocalyptic number.

64345807 is a deficient number, since it is larger than the sum of its proper divisors (1).

64345807 is an equidigital number, since it uses as much as digits as its factorization.

64345807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 64345807 is about 8021.5838211665. The cubic root of 64345807 is about 400.7191375781.

The spelling of 64345807 in words is "sixty-four million, three hundred forty-five thousand, eight hundred seven".