989020401 has 16 divisors (see below), whose sum is σ = 1384808064. Its totient is φ = 626655744.

The previous prime is 989020393. The next prime is 989020423. The reversal of 989020401 is 104020989.

It is not a de Polignac number, because 989020401 - 2³ = 989020393 is a prime.

It is a super-2 number, since 2×989020401² = 1956322707188401602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (989020301) 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, 34816 + ... + 56481.

It is an arithmetic number, because the mean of its divisors is an integer number (86550504).

Almost surely, 2^989020401 is an apocalyptic number.

It is an amenable number.

989020401 is a deficient number, since it is larger than the sum of its proper divisors (395787663).

989020401 is a wasteful number, since it uses less digits than its factorization.

989020401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91480.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 989020401 is about 31448.6947423895. The cubic root of 989020401 is about 996.3266567380.

The spelling of 989020401 in words is "nine hundred eighty-nine million, twenty thousand, four hundred one".