189653247 has 24 divisors (see below), whose sum is σ = 313466400. Its totient is φ = 108239040.

The previous prime is 189653213. The next prime is 189653267. The reversal of 189653247 is 742356981.

It is not a de Polignac number, because 189653247 - 2⁶ = 189653183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189653267) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73129 + ... + 75677.

It is an arithmetic number, because the mean of its divisors is an integer number (13061100).

Almost surely, 2^189653247 is an apocalyptic number.

189653247 is a deficient number, since it is larger than the sum of its proper divisors (123813153).

189653247 is a wasteful number, since it uses less digits than its factorization.

189653247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3743 (or 3740 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 189653247 is about 13771.4649547534. The cubic root of 189653247 is about 574.5397673277.

The spelling of 189653247 in words is "one hundred eighty-nine million, six hundred fifty-three thousand, two hundred forty-seven".