164879289 has 12 divisors (see below), whose sum is σ = 244596196. Its totient is φ = 106948512.

The previous prime is 164879269. The next prime is 164879291. The reversal of 164879289 is 982978461.

It can be written as a sum of positive squares in 2 ways, for example, as 146603664 + 18275625 = 12108^2 + 4275^2 .

It is not a de Polignac number, because 164879289 - 2⁵ = 164879257 is a prime.

It is a super-2 number, since 2×164879289² = 54370359882291042, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (164879219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 247234 + ... + 247899.

Almost surely, 2^164879289 is an apocalyptic number.

It is an amenable number.

164879289 is a deficient number, since it is larger than the sum of its proper divisors (79716907).

164879289 is a wasteful number, since it uses less digits than its factorization.

164879289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495176 (or 495173 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 164879289 is about 12840.5330496829. The cubic root of 164879289 is about 548.3468697880.

The spelling of 164879289 in words is "one hundred sixty-four million, eight hundred seventy-nine thousand, two hundred eighty-nine".