989233051 has 4 divisors (see below), whose sum is σ = 989600392. Its totient is φ = 988865712.

The previous prime is 989232991. The next prime is 989233061. The reversal of 989233051 is 150332989.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 989233051 - 2¹⁷ = 989101979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 989232995 and 989233013.

It is not an unprimeable number, because it can be changed into a prime (989233061) 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, 179601 + ... + 185026.

It is an arithmetic number, because the mean of its divisors is an integer number (247400098).

Almost surely, 2^989233051 is an apocalyptic number.

989233051 is a deficient number, since it is larger than the sum of its proper divisors (367341).

989233051 is a wasteful number, since it uses less digits than its factorization.

989233051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367340.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 989233051 is about 31452.0754641089. The cubic root of 989233051 is about 996.3980585953.

The spelling of 989233051 in words is "nine hundred eighty-nine million, two hundred thirty-three thousand, fifty-one".