9164989 has 8 divisors (see below), whose sum is σ = 9748728. Its totient is φ = 8586240.

The previous prime is 9164959. The next prime is 9165007. The reversal of 9164989 is 9894619.

It can be written as a sum of positive squares in 4 ways, for example, as 4995225 + 4169764 = 2235^2 + 2042^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 9164989 - 2⁷ = 9164861 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9164929) 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, 2979 + ... + 5215.

It is an arithmetic number, because the mean of its divisors is an integer number (1218591).

Almost surely, 2^9164989 is an apocalyptic number.

It is an amenable number.

9164989 is a deficient number, since it is larger than the sum of its proper divisors (583739).

9164989 is a wasteful number, since it uses less digits than its factorization.

9164989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495.

The product of its digits is 139968, while the sum is 46.

The square root of 9164989 is about 3027.3732838882. The cubic root of 9164989 is about 209.2717708697.

It can be divided in two parts, 9164 and 989, that added together give a triangular number (10153 = T₁₄₂).

The spelling of 9164989 in words is "nine million, one hundred sixty-four thousand, nine hundred eighty-nine".