989668001 has 4 divisors (see below), whose sum is σ = 1131049152. Its totient is φ = 848286852.

The previous prime is 989667967. The next prime is 989668019. The reversal of 989668001 is 100866989.

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 de Polignac number, because none of the positive numbers 2^k-989668001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (989668021) 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, 70690565 + ... + 70690578.

It is an arithmetic number, because the mean of its divisors is an integer number (282762288).

Almost surely, 2^989668001 is an apocalyptic number.

It is an amenable number.

989668001 is a deficient number, since it is larger than the sum of its proper divisors (141381151).

989668001 is a wasteful number, since it uses less digits than its factorization.

989668001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141381150.

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 989668001 is about 31458.9891922802. The cubic root of 989668001 is about 996.5440706442.

The spelling of 989668001 in words is "nine hundred eighty-nine million, six hundred sixty-eight thousand, one".