10164989 has 4 divisors (see below), whose sum is σ = 10239324. Its totient is φ = 10090656.

The previous prime is 10164977. The next prime is 10164991. The reversal of 10164989 is 98946101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98946101 = 1031 ⋅95971.

It can be written as a sum of positive squares in 2 ways, for example, as 2088025 + 8076964 = 1445^2 + 2842^2 .

It is a cyclic number.

It is not a de Polignac number, because 10164989 - 2⁸ = 10164733 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10164389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36962 + ... + 37235.

It is an arithmetic number, because the mean of its divisors is an integer number (2559831).

Almost surely, 2^10164989 is an apocalyptic number.

It is an amenable number.

10164989 is a deficient number, since it is larger than the sum of its proper divisors (74335).

10164989 is an equidigital number, since it uses as much as digits as its factorization.

10164989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74334.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 10164989 is about 3188.2579883065. The cubic root of 10164989 is about 216.6218718704.

The spelling of 10164989 in words is "ten million, one hundred sixty-four thousand, nine hundred eighty-nine".