189627089 has 4 divisors (see below), whose sum is σ = 189740400. Its totient is φ = 189513780.

The previous prime is 189627073. The next prime is 189627107. The reversal of 189627089 is 980726981.

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 189627089 - 2⁴ = 189627073 is a prime.

It is a super-2 number, since 2×189627089² = 71916865765227842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189627059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54107 + ... + 57504.

It is an arithmetic number, because the mean of its divisors is an integer number (47435100).

Almost surely, 2^189627089 is an apocalyptic number.

It is an amenable number.

189627089 is a deficient number, since it is larger than the sum of its proper divisors (113311).

189627089 is a wasteful number, since it uses less digits than its factorization.

189627089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113310.

The product of its (nonzero) digits is 435456, while the sum is 50.

The square root of 189627089 is about 13770.5152045957. The cubic root of 189627089 is about 574.5133515707.

The spelling of 189627089 in words is "one hundred eighty-nine million, six hundred twenty-seven thousand, eighty-nine".