189048647 has 4 divisors (see below), whose sum is σ = 191711376. Its totient is φ = 186385920.

The previous prime is 189048637. The next prime is 189048679. The reversal of 189048647 is 746840981.

189048647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 189048647 - 2⁴ = 189048631 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 (189048637) 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, 1331258 + ... + 1331399.

It is an arithmetic number, because the mean of its divisors is an integer number (47927844).

Almost surely, 2^189048647 is an apocalyptic number.

189048647 is a deficient number, since it is larger than the sum of its proper divisors (2662729).

189048647 is an equidigital number, since it uses as much as digits as its factorization.

189048647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662728.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 189048647 is about 13749.4962453175. The cubic root of 189048647 is about 573.9285878371.

The spelling of 189048647 in words is "one hundred eighty-nine million, forty-eight thousand, six hundred forty-seven".