664848001 has 4 divisors (see below), whose sum is σ = 665748400. Its totient is φ = 663947604.

The previous prime is 664847999. The next prime is 664848029. The reversal of 664848001 is 100848466.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 664848001 - 2¹ = 664847999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (664848071) 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, 449091 + ... + 450568.

It is an arithmetic number, because the mean of its divisors is an integer number (166437100).

Almost surely, 2^664848001 is an apocalyptic number.

It is an amenable number.

664848001 is a deficient number, since it is larger than the sum of its proper divisors (900399).

664848001 is an equidigital number, since it uses as much as digits as its factorization.

664848001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900398.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 664848001 is about 25784.6466138282. The cubic root of 664848001 is about 872.7853658888.

The spelling of 664848001 in words is "six hundred sixty-four million, eight hundred forty-eight thousand, one".