989275138 has 8 divisors (see below), whose sum is σ = 1484144640. Its totient is φ = 494560260.

The previous prime is 989275127. The next prime is 989275159. The reversal of 989275138 is 831572989.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21058 + ... + 49213.

It is an arithmetic number, because the mean of its divisors is an integer number (185518080).

Almost surely, 2^989275138 is an apocalyptic number.

989275138 is a deficient number, since it is larger than the sum of its proper divisors (494869502).

989275138 is a wasteful number, since it uses less digits than its factorization.

989275138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77312.

The product of its digits is 1088640, while the sum is 52.

The square root of 989275138 is about 31452.7445225373. The cubic root of 989275138 is about 996.4121890068.

The spelling of 989275138 in words is "nine hundred eighty-nine million, two hundred seventy-five thousand, one hundred thirty-eight".