189247347 has 20 divisors (see below), whose sum is σ = 283834056. Its totient is φ = 125660160.

The previous prime is 189247337. The next prime is 189247367. The reversal of 189247347 is 743742981.

It is not a de Polignac number, because 189247347 - 2⁶ = 189247283 is a prime.

It is a super-3 number, since 3×189247347³ (a number of 26 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (189247307) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16272 + ... + 25362.

Almost surely, 2^189247347 is an apocalyptic number.

189247347 is a deficient number, since it is larger than the sum of its proper divisors (94586709).

189247347 is an equidigital number, since it uses as much as digits as its factorization.

189247347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9360 (or 9351 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 189247347 is about 13756.7200669346. The cubic root of 189247347 is about 574.1295937363.

The spelling of 189247347 in words is "one hundred eighty-nine million, two hundred forty-seven thousand, three hundred forty-seven".