164673279 has 12 divisors (see below), whose sum is σ = 242350056. Its totient is φ = 107710512.

The previous prime is 164673277. The next prime is 164673283. The reversal of 164673279 is 972376461.

It is not a de Polignac number, because 164673279 - 2¹ = 164673277 is a prime.

It is a super-2 number, since 2×164673279² = 54234577633223682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164673277) 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, 172137 + ... + 173090.

It is an arithmetic number, because the mean of its divisors is an integer number (20195838).

Almost surely, 2^164673279 is an apocalyptic number.

164673279 is a deficient number, since it is larger than the sum of its proper divisors (77676777).

164673279 is a wasteful number, since it uses less digits than its factorization.

164673279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345286 (or 345283 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 164673279 is about 12832.5086791321. The cubic root of 164673279 is about 548.1183955298.

The spelling of 164673279 in words is "one hundred sixty-four million, six hundred seventy-three thousand, two hundred seventy-nine".