999648001 has 8 divisors (see below), whose sum is σ = 1093377024. Its totient is φ = 906394320.

The previous prime is 999647993. The next prime is 999648061. The reversal of 999648001 is 100846999.

999648001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 999648001 - 2³ = 999647993 is a prime.

It is a super-2 number, since 2×999648001² = 1998592251806592002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (999648061) 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, 114426 + ... + 122851.

It is an arithmetic number, because the mean of its divisors is an integer number (136672128).

Almost surely, 2^999648001 is an apocalyptic number.

It is an amenable number.

999648001 is a deficient number, since it is larger than the sum of its proper divisors (93729023).

999648001 is a wasteful number, since it uses less digits than its factorization.

999648001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237671.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 999648001 is about 31617.2105189563. The cubic root of 999648001 is about 999.8826532303.

The spelling of 999648001 in words is "nine hundred ninety-nine million, six hundred forty-eight thousand, one".