631983001 has 8 divisors (see below), whose sum is σ = 681968000. Its totient is φ = 582193872.

The previous prime is 631982987. The next prime is 631983031. The reversal of 631983001 is 100389136.

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

It is not a de Polignac number, because 631983001 - 2⁵ = 631982969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (631983031) 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, 42225 + ... + 55198.

It is an arithmetic number, because the mean of its divisors is an integer number (85246000).

Almost surely, 2^631983001 is an apocalyptic number.

It is an amenable number.

631983001 is a deficient number, since it is larger than the sum of its proper divisors (49984999).

631983001 is a wasteful number, since it uses less digits than its factorization.

631983001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97935.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 631983001 is about 25139.2720857228. The cubic root of 631983001 is about 858.1603912438.

The spelling of 631983001 in words is "six hundred thirty-one million, nine hundred eighty-three thousand, one".