989266173 has 16 divisors (see below), whose sum is σ = 1508491776. Its totient is φ = 564905520.

The previous prime is 989266169. The next prime is 989266207. The reversal of 989266173 is 371662989.

It is not a de Polignac number, because 989266173 - 2² = 989266169 is a prime.

It is a super-2 number, since 2×989266173² = 1957295122084131858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989266153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16518 + ... + 47448.

It is an arithmetic number, because the mean of its divisors is an integer number (94280736).

Almost surely, 2^989266173 is an apocalyptic number.

It is an amenable number.

989266173 is a deficient number, since it is larger than the sum of its proper divisors (519225603).

989266173 is a wasteful number, since it uses less digits than its factorization.

989266173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32464.

The product of its digits is 979776, while the sum is 51.

The square root of 989266173 is about 31452.6020068293. The cubic root of 989266173 is about 996.4091791053.

The spelling of 989266173 in words is "nine hundred eighty-nine million, two hundred sixty-six thousand, one hundred seventy-three".