64471288 has 32 divisors (see below), whose sum is σ = 138441600. Its totient is φ = 27572832.

The previous prime is 64471283. The next prime is 64471331. The reversal of 64471288 is 88217446.

It is a self number, because there is not a number n which added to its sum of digits gives 64471288.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64471283) 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, 36031 + ... + 37777.

It is an arithmetic number, because the mean of its divisors is an integer number (4326300).

Almost surely, 2^64471288 is an apocalyptic number.

It is an amenable number.

64471288 is an abundant number, since it is smaller than the sum of its proper divisors (73970312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64471288 is a wasteful number, since it uses less digits than its factorization.

64471288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419 (or 2415 counting only the distinct ones).

The product of its digits is 86016, while the sum is 40.

The square root of 64471288 is about 8029.4014720899. The cubic root of 64471288 is about 400.9794497380.

The spelling of 64471288 in words is "sixty-four million, four hundred seventy-one thousand, two hundred eighty-eight".