64497323 has 16 divisors (see below), whose sum is σ = 71850240. Its totient is φ = 57405600.

The previous prime is 64497299. The next prime is 64497361. The reversal of 64497323 is 32379446.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64497323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64497373) 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, 209936 + ... + 210242.

It is an arithmetic number, because the mean of its divisors is an integer number (4490640).

Almost surely, 2^64497323 is an apocalyptic number.

64497323 is a deficient number, since it is larger than the sum of its proper divisors (7352917).

64497323 is a wasteful number, since it uses less digits than its factorization.

64497323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658.

The product of its digits is 108864, while the sum is 38.

The square root of 64497323 is about 8031.0225376349. The cubic root of 64497323 is about 401.0334174053.

The spelling of 64497323 in words is "sixty-four million, four hundred ninety-seven thousand, three hundred twenty-three".