189647264 has 12 divisors (see below), whose sum is σ = 373368114. Its totient is φ = 94823616.

The previous prime is 189647261. The next prime is 189647279. The reversal of 189647264 is 462746981.

189647264 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 123387664 + 66259600 = 11108^2 + 8140^2 .

It is not an unprimeable number, because it can be changed into a prime (189647261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2963207 + ... + 2963270.

Almost surely, 2^189647264 is an apocalyptic number.

It is an amenable number.

189647264 is a deficient number, since it is larger than the sum of its proper divisors (183720850).

189647264 is an equidigital number, since it uses as much as digits as its factorization.

189647264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5926487 (or 5926479 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The square root of 189647264 is about 13771.2477285103. The cubic root of 189647264 is about 574.5337255864.

The spelling of 189647264 in words is "one hundred eighty-nine million, six hundred forty-seven thousand, two hundred sixty-four".