189085007 has 4 divisors (see below), whose sum is σ = 190528536. Its totient is φ = 187641480.

The previous prime is 189085003. The next prime is 189085009. The reversal of 189085007 is 700580981.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 189085007 - 2² = 189085003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189085003) 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, 721568 + ... + 721829.

It is an arithmetic number, because the mean of its divisors is an integer number (47632134).

Almost surely, 2^189085007 is an apocalyptic number.

189085007 is a deficient number, since it is larger than the sum of its proper divisors (1443529).

189085007 is a wasteful number, since it uses less digits than its factorization.

189085007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443528.

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 189085007 is about 13750.8184120073. The cubic root of 189085007 is about 573.9653803172.

The spelling of 189085007 in words is "one hundred eighty-nine million, eighty-five thousand, seven".