989203051 has 4 divisors (see below), whose sum is σ = 989759632. Its totient is φ = 988646472.

The previous prime is 989203043. The next prime is 989203069. The reversal of 989203051 is 150302989.

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 989203051 - 2³ = 989203043 is a prime.

It is a super-2 number, since 2×989203051² = 1957045352215417202, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 989203051.

It is not an unprimeable number, because it can be changed into a prime (989203001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275616 + ... + 279181.

It is an arithmetic number, because the mean of its divisors is an integer number (247439908).

Almost surely, 2^989203051 is an apocalyptic number.

989203051 is a deficient number, since it is larger than the sum of its proper divisors (556581).

989203051 is a wasteful number, since it uses less digits than its factorization.

989203051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556580.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 989203051 is about 31451.5985444301. The cubic root of 989203051 is about 996.3879860635.

The spelling of 989203051 in words is "nine hundred eighty-nine million, two hundred three thousand, fifty-one".