164708073 has 28 divisors (see below), whose sum is σ = 249505668. Its totient is φ = 108669600.

The previous prime is 164708057. The next prime is 164708099. The reversal of 164708073 is 370807461.

164708073 is a `hidden beast` number, since 1 + 647 + 0 + 8 + 0 + 7 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 146967129 + 17740944 = 12123^2 + 4212^2 .

It is not a de Polignac number, because 164708073 - 2⁴ = 164708057 is a prime.

It is a super-2 number, since 2×164708073² = 54257498622746658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (164708273) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 72511 + ... + 74747.

Almost surely, 2^164708073 is an apocalyptic number.

It is an amenable number.

164708073 is a deficient number, since it is larger than the sum of its proper divisors (84797595).

164708073 is an equidigital number, since it uses as much as digits as its factorization.

164708073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2356 (or 2341 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 164708073 is about 12833.8643050330. The cubic root of 164708073 is about 548.1569969927.

The spelling of 164708073 in words is "one hundred sixty-four million, seven hundred eight thousand, seventy-three".