889939901 has 4 divisors (see below), whose sum is σ = 890378400. Its totient is φ = 889501404.

The previous prime is 889939871. The next prime is 889939913. The reversal of 889939901 is 109939988.

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 cyclic number.

It is not a de Polignac number, because 889939901 - 2⁶ = 889939837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889939961) 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, 216191 + ... + 220268.

It is an arithmetic number, because the mean of its divisors is an integer number (222594600).

Almost surely, 2^889939901 is an apocalyptic number.

It is an amenable number.

889939901 is a deficient number, since it is larger than the sum of its proper divisors (438499).

889939901 is a wasteful number, since it uses less digits than its factorization.

889939901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438498.

The product of its (nonzero) digits is 1259712, while the sum is 56.

The square root of 889939901 is about 29831.8605018192. The cubic root of 889939901 is about 961.8785197202.

The spelling of 889939901 in words is "eight hundred eighty-nine million, nine hundred thirty-nine thousand, nine hundred one".