174899989 has 4 divisors (see below), whose sum is σ = 190800000. Its totient is φ = 158999980.

The previous prime is 174899969. The next prime is 174900017. The reversal of 174899989 is 989998471.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 174899989 - 2⁹ = 174899477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 174899989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (174899929) 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 3 ways as a sum of consecutive naturals, for example, 7949989 + ... + 7950010.

It is an arithmetic number, because the mean of its divisors is an integer number (47700000).

Almost surely, 2^174899989 is an apocalyptic number.

It is an amenable number.

174899989 is a deficient number, since it is larger than the sum of its proper divisors (15900011).

174899989 is a wasteful number, since it uses less digits than its factorization.

174899989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15900010.

The product of its digits is 11757312, while the sum is 64.

The square root of 174899989 is about 13224.9759546095. The cubic root of 174899989 is about 559.2378972125.

The spelling of 174899989 in words is "one hundred seventy-four million, eight hundred ninety-nine thousand, nine hundred eighty-nine".