989275137 has 8 divisors (see below), whose sum is σ = 1319193120. Its totient is φ = 659436960.

The previous prime is 989275127. The next prime is 989275159. The reversal of 989275137 is 731572989.

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

It is not a de Polignac number, because 989275137 - 2⁴ = 989275121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 989275137.

It is not an unprimeable number, because it can be changed into a prime (989275127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20962 + ... + 49172.

It is an arithmetic number, because the mean of its divisors is an integer number (164899140).

Almost surely, 2^989275137 is an apocalyptic number.

It is an amenable number.

989275137 is a deficient number, since it is larger than the sum of its proper divisors (329917983).

989275137 is a wasteful number, since it uses less digits than its factorization.

989275137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39903.

The product of its digits is 952560, while the sum is 51.

The square root of 989275137 is about 31452.7445066404. The cubic root of 989275137 is about 996.4121886711.

The spelling of 989275137 in words is "nine hundred eighty-nine million, two hundred seventy-five thousand, one hundred thirty-seven".