989933001 has 16 divisors (see below), whose sum is σ = 1398271104. Its totient is φ = 620815104.

The previous prime is 989932991. The next prime is 989933011. The reversal of 989933001 is 100339989.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (989932991) and next prime (989933011).

It is not a de Polignac number, because 989933001 - 2⁵ = 989932969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (989933011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131331 + ... + 138663.

It is an arithmetic number, because the mean of its divisors is an integer number (87391944).

Almost surely, 2^989933001 is an apocalyptic number.

It is an amenable number.

989933001 is a deficient number, since it is larger than the sum of its proper divisors (408338103).

989933001 is a wasteful number, since it uses less digits than its factorization.

989933001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10000.

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 989933001 is about 31463.2007430903. The cubic root of 989933001 is about 996.6330097669.

The spelling of 989933001 in words is "nine hundred eighty-nine million, nine hundred thirty-three thousand, one".