64447295 has 16 divisors (see below), whose sum is σ = 87091200. Its totient is φ = 45357600.

The previous prime is 64447291. The next prime is 64447301. The reversal of 64447295 is 59274446.

It is not a de Polignac number, because 64447295 - 2² = 64447291 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64447291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17195 + ... + 20604.

It is an arithmetic number, because the mean of its divisors is an integer number (5443200).

Almost surely, 2^64447295 is an apocalyptic number.

64447295 is a deficient number, since it is larger than the sum of its proper divisors (22643905).

64447295 is a wasteful number, since it uses less digits than its factorization.

64447295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37846.

The product of its digits is 241920, while the sum is 41.

The square root of 64447295 is about 8027.9072615471. The cubic root of 64447295 is about 400.9297020445.

The spelling of 64447295 in words is "sixty-four million, four hundred forty-seven thousand, two hundred ninety-five".