169906964 has 6 divisors (see below), whose sum is σ = 297337194. Its totient is φ = 84953480.

The previous prime is 169906951. The next prime is 169906967. The reversal of 169906964 is 469609961.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 147816964 + 22090000 = 12158^2 + 4700^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169906967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21238367 + ... + 21238374.

It is an arithmetic number, because the mean of its divisors is an integer number (49556199).

Almost surely, 2^169906964 is an apocalyptic number.

It is an amenable number.

169906964 is a deficient number, since it is larger than the sum of its proper divisors (127430230).

169906964 is a wasteful number, since it uses less digits than its factorization.

169906964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42476745 (or 42476743 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 50.

The square root of 169906964 is about 13034.8365544030. The cubic root of 169906964 is about 553.8647508337.

The spelling of 169906964 in words is "one hundred sixty-nine million, nine hundred six thousand, nine hundred sixty-four".