164002709 has 8 divisors (see below), whose sum is σ = 179514552. Its totient is φ = 148904640.

The previous prime is 164002691. The next prime is 164002711. The reversal of 164002709 is 907200461.

It can be written as a sum of positive squares in 4 ways, for example, as 418609 + 163584100 = 647^2 + 12790^2 .

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 164002709 - 2¹⁶ = 163937173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164002739) 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, 102614 + ... + 104199.

It is an arithmetic number, because the mean of its divisors is an integer number (22439319).

Almost surely, 2^164002709 is an apocalyptic number.

It is an amenable number.

164002709 is a deficient number, since it is larger than the sum of its proper divisors (15511843).

164002709 is a wasteful number, since it uses less digits than its factorization.

164002709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206887.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 164002709 is about 12806.3542431092. The cubic root of 164002709 is about 547.3733813379.

The spelling of 164002709 in words is "one hundred sixty-four million, two thousand, seven hundred nine".