169089387 has 16 divisors (see below), whose sum is σ = 227381760. Its totient is φ = 111766752.

The previous prime is 169089367. The next prime is 169089391. The reversal of 169089387 is 783980961.

It is not a de Polignac number, because 169089387 - 2⁸ = 169089131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (169089317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234814 + ... + 235532.

It is an arithmetic number, because the mean of its divisors is an integer number (14211360).

Almost surely, 2^169089387 is an apocalyptic number.

169089387 is a deficient number, since it is larger than the sum of its proper divisors (58292373).

169089387 is a wasteful number, since it uses less digits than its factorization.

169089387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282.

The product of its (nonzero) digits is 653184, while the sum is 51.

The square root of 169089387 is about 13003.4375070594. The cubic root of 169089387 is about 552.9749396498.

The spelling of 169089387 in words is "one hundred sixty-nine million, eighty-nine thousand, three hundred eighty-seven".