889940403 has 36 divisors (see below), whose sum is σ = 1466038392. Its totient is φ = 515877120.

The previous prime is 889940377. The next prime is 889940453. The reversal of 889940403 is 304049988.

It is a happy number.

It is not a de Polignac number, because 889940403 - 2⁸ = 889940147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (889940453) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 43875 + ... + 60867.

Almost surely, 2^889940403 is an apocalyptic number.

889940403 is a deficient number, since it is larger than the sum of its proper divisors (576097989).

889940403 is a wasteful number, since it uses less digits than its factorization.

889940403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17056 (or 17030 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 889940403 is about 29831.8689156412. The cubic root of 889940403 is about 961.8787005799.

The spelling of 889940403 in words is "eight hundred eighty-nine million, nine hundred forty thousand, four hundred three".