64047272 has 16 divisors (see below), whose sum is σ = 125310240. Its totient is φ = 30631216.

The previous prime is 64047241. The next prime is 64047281. The reversal of 64047272 is 27274046.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173858 + ... + 174225.

It is an arithmetic number, because the mean of its divisors is an integer number (7831890).

Almost surely, 2^64047272 is an apocalyptic number.

It is an amenable number.

64047272 is a deficient number, since it is larger than the sum of its proper divisors (61262968).

64047272 is a wasteful number, since it uses less digits than its factorization.

64047272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348112 (or 348108 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 64047272 is about 8002.9539546345. The cubic root of 64047272 is about 400.0984590959.

The spelling of 64047272 in words is "sixty-four million, forty-seven thousand, two hundred seventy-two".