663276001 has 4 divisors (see below), whose sum is σ = 692114112. Its totient is φ = 634437892.

The previous prime is 663275999. The next prime is 663276011. The reversal of 663276001 is 100672366.

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 663276001 - 2¹ = 663275999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (663276011) 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, 14419021 + ... + 14419066.

It is an arithmetic number, because the mean of its divisors is an integer number (173028528).

Almost surely, 2^663276001 is an apocalyptic number.

It is an amenable number.

663276001 is a deficient number, since it is larger than the sum of its proper divisors (28838111).

663276001 is a wasteful number, since it uses less digits than its factorization.

663276001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28838110.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 663276001 is about 25754.1453168223. The cubic root of 663276001 is about 872.0969371690.

The spelling of 663276001 in words is "six hundred sixty-three million, two hundred seventy-six thousand, one".