64424405 has 8 divisors (see below), whose sum is σ = 77356032. Its totient is φ = 51508368.

The previous prime is 64424389. The next prime is 64424413. The reversal of 64424405 is 50442446.

It is a happy number.

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 64424405 - 2⁴ = 64424389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9212 + ... + 14618.

It is an arithmetic number, because the mean of its divisors is an integer number (9669504).

Almost surely, 2^64424405 is an apocalyptic number.

It is an amenable number.

64424405 is a deficient number, since it is larger than the sum of its proper divisors (12931627).

64424405 is a wasteful number, since it uses less digits than its factorization.

64424405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7795.

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 64424405 is about 8026.4814831905. The cubic root of 64424405 is about 400.8822298291.

The spelling of 64424405 in words is "sixty-four million, four hundred twenty-four thousand, four hundred five".