169949907 has 20 divisors (see below), whose sum is σ = 254232616. Its totient is φ = 113140800.

The previous prime is 169949891. The next prime is 169949909. The reversal of 169949907 is 709949961.

It is not a de Polignac number, because 169949907 - 2⁴ = 169949891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (169949909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 96408 + ... + 98154.

Almost surely, 2^169949907 is an apocalyptic number.

169949907 is a deficient number, since it is larger than the sum of its proper divisors (84282709).

169949907 is a wasteful number, since it uses less digits than its factorization.

169949907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2960 (or 2951 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 54.

The square root of 169949907 is about 13036.4836900140. The cubic root of 169949907 is about 553.9114089378.

Adding to 169949907 its sum of digits (54), we get a palindrome (169949961).

The spelling of 169949907 in words is "one hundred sixty-nine million, nine hundred forty-nine thousand, nine hundred seven".