164987694 has 36 divisors (see below), whose sum is σ = 373712976. Its totient is φ = 52601736.

The previous prime is 164987663. The next prime is 164987707. The reversal of 164987694 is 496789461.

164987694 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 164987694.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 859 + ... + 18185.

It is an arithmetic number, because the mean of its divisors is an integer number (10380916).

Almost surely, 2^164987694 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164987694, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186856488).

164987694 is an abundant number, since it is smaller than the sum of its proper divisors (208725282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164987694 is a wasteful number, since it uses less digits than its factorization.

164987694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17381 (or 17355 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 164987694 is about 12844.7535593331. The cubic root of 164987694 is about 548.4670193428.

The spelling of 164987694 in words is "one hundred sixty-four million, nine hundred eighty-seven thousand, six hundred ninety-four".