664053297 has 8 divisors (see below), whose sum is σ = 895353120. Its totient is φ = 437727840.

The previous prime is 664053277. The next prime is 664053311. The reversal of 664053297 is 792350466.

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

It is not a de Polignac number, because 664053297 - 2¹² = 664049201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (664053277) 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, 1243279 + ... + 1243812.

It is an arithmetic number, because the mean of its divisors is an integer number (111919140).

Almost surely, 2^664053297 is an apocalyptic number.

It is an amenable number.

664053297 is a deficient number, since it is larger than the sum of its proper divisors (231299823).

664053297 is a wasteful number, since it uses less digits than its factorization.

664053297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2487183.

The product of its (nonzero) digits is 272160, while the sum is 42.

The square root of 664053297 is about 25769.2315950631. The cubic root of 664053297 is about 872.4374755621.

The spelling of 664053297 in words is "six hundred sixty-four million, fifty-three thousand, two hundred ninety-seven".