189496447 has 8 divisors (see below), whose sum is σ = 216753152. Its totient is φ = 162286200.

The previous prime is 189496441. The next prime is 189496453. The reversal of 189496447 is 744694981.

It is an interprime number because it is at equal distance from previous prime (189496441) and next prime (189496453).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 189496447 - 2¹⁵ = 189463679 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 189496394 and 189496403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189496441) 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 7 ways as a sum of consecutive naturals, for example, 2379 + ... + 19612.

It is an arithmetic number, because the mean of its divisors is an integer number (27094144).

Almost surely, 2^189496447 is an apocalyptic number.

189496447 is a deficient number, since it is larger than the sum of its proper divisors (27256705).

189496447 is a wasteful number, since it uses less digits than its factorization.

189496447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23229.

The product of its digits is 1741824, while the sum is 52.

The square root of 189496447 is about 13765.7708465600. The cubic root of 189496447 is about 574.3813858680.

The spelling of 189496447 in words is "one hundred eighty-nine million, four hundred ninety-six thousand, four hundred forty-seven".