189652907 has 4 divisors (see below), whose sum is σ = 189753960. Its totient is φ = 189551856.

The previous prime is 189652873. The next prime is 189652933. The reversal of 189652907 is 709256981.

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 189652907 - 2²⁰ = 188604331 is a prime.

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 (189652937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47657 + ... + 51482.

It is an arithmetic number, because the mean of its divisors is an integer number (47438490).

Almost surely, 2^189652907 is an apocalyptic number.

189652907 is a deficient number, since it is larger than the sum of its proper divisors (101053).

189652907 is an equidigital number, since it uses as much as digits as its factorization.

189652907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101052.

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 189652907 is about 13771.4526103821. The cubic root of 189652907 is about 574.5394239929.

The spelling of 189652907 in words is "one hundred eighty-nine million, six hundred fifty-two thousand, nine hundred seven".