64497297 has 8 divisors (see below), whose sum is σ = 86042880. Its totient is φ = 42974960.

The previous prime is 64497281. The next prime is 64497299. The reversal of 64497297 is 79279446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64497297 - 2⁴ = 64497281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64497299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2272 + ... + 11582.

It is an arithmetic number, because the mean of its divisors is an integer number (10755360).

Almost surely, 2^64497297 is an apocalyptic number.

It is an amenable number.

64497297 is a deficient number, since it is larger than the sum of its proper divisors (21545583).

64497297 is a wasteful number, since it uses less digits than its factorization.

64497297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11623.

The product of its digits is 762048, while the sum is 48.

The square root of 64497297 is about 8031.0209189119. The cubic root of 64497297 is about 401.0333635174.

The spelling of 64497297 in words is "sixty-four million, four hundred ninety-seven thousand, two hundred ninety-seven".