64424407 has 8 divisors (see below), whose sum is σ = 69878592. Its totient is φ = 59155200.

The previous prime is 64424389. The next prime is 64424413. The reversal of 64424407 is 70442446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64424407 - 2²³ = 56035799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64424447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45519 + ... + 46912.

It is an arithmetic number, because the mean of its divisors is an integer number (8734824).

Almost surely, 2^64424407 is an apocalyptic number.

64424407 is a deficient number, since it is larger than the sum of its proper divisors (5454185).

64424407 is a wasteful number, since it uses less digits than its factorization.

64424407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92489.

The product of its (nonzero) digits is 21504, while the sum is 31.

The square root of 64424407 is about 8026.4816077781. The cubic root of 64424407 is about 400.8822339774.

The spelling of 64424407 in words is "sixty-four million, four hundred twenty-four thousand, four hundred seven".