64243496 has 8 divisors (see below), whose sum is σ = 120456570. Its totient is φ = 32121744.

The previous prime is 64243481. The next prime is 64243513. The reversal of 64243496 is 69434246.

It can be written as a sum of positive squares in only one way, i.e., 34975396 + 29268100 = 5914^2 + 5410^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4015211 + ... + 4015226.

Almost surely, 2^64243496 is an apocalyptic number.

It is an amenable number.

64243496 is a deficient number, since it is larger than the sum of its proper divisors (56213074).

64243496 is a wasteful number, since it uses less digits than its factorization.

64243496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8030443 (or 8030439 counting only the distinct ones).

The product of its digits is 124416, while the sum is 38.

The square root of 64243496 is about 8015.2040522996. The cubic root of 64243496 is about 400.5066413488.

The spelling of 64243496 in words is "sixty-four million, two hundred forty-three thousand, four hundred ninety-six".