64480405 has 16 divisors (see below), whose sum is σ = 89377344. Its totient is φ = 44135680.

The previous prime is 64480397. The next prime is 64480417. The reversal of 64480405 is 50408446.

It is not a de Polignac number, because 64480405 - 2³ = 64480397 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 15 ways as a sum of consecutive naturals, for example, 33547 + ... + 35416.

It is an arithmetic number, because the mean of its divisors is an integer number (5586084).

Almost surely, 2^64480405 is an apocalyptic number.

It is an amenable number.

64480405 is a deficient number, since it is larger than the sum of its proper divisors (24896939).

64480405 is a wasteful number, since it uses less digits than its factorization.

64480405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68996.

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 64480405 is about 8029.9691780230. The cubic root of 64480405 is about 400.9983499206.

The spelling of 64480405 in words is "sixty-four million, four hundred eighty thousand, four hundred five".