64297532 has 12 divisors (see below), whose sum is σ = 121176216. Its totient is φ = 29675760.

The previous prime is 64297511. The next prime is 64297537. The reversal of 64297532 is 23579246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64297537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 618194 + ... + 618297.

It is an arithmetic number, because the mean of its divisors is an integer number (10098018).

Almost surely, 2^64297532 is an apocalyptic number.

It is an amenable number.

64297532 is a deficient number, since it is larger than the sum of its proper divisors (56878684).

64297532 is a wasteful number, since it uses less digits than its factorization.

64297532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236508 (or 1236506 counting only the distinct ones).

The product of its digits is 90720, while the sum is 38.

The square root of 64297532 is about 8018.5741874725. The cubic root of 64297532 is about 400.6189002457.

The spelling of 64297532 in words is "sixty-four million, two hundred ninety-seven thousand, five hundred thirty-two".