189898529 has 8 divisors (see below), whose sum is σ = 196197120. Its totient is φ = 183610800.

The previous prime is 189898507. The next prime is 189898531. The reversal of 189898529 is 925898981.

189898529 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 189898529 - 2²⁰ = 188849953 is a prime.

It is a super-2 number, since 2×189898529² = 72122902632727682, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189898589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48362 + ... + 52140.

It is an arithmetic number, because the mean of its divisors is an integer number (24524640).

Almost surely, 2^189898529 is an apocalyptic number.

It is an amenable number.

189898529 is a deficient number, since it is larger than the sum of its proper divisors (6298591).

189898529 is a wasteful number, since it uses less digits than its factorization.

189898529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5431.

The product of its digits is 3732480, while the sum is 59.

The square root of 189898529 is about 13780.3675204981. The cubic root of 189898529 is about 574.7873482080.

The spelling of 189898529 in words is "one hundred eighty-nine million, eight hundred ninety-eight thousand, five hundred twenty-nine".