189048447 has 24 divisors (see below), whose sum is σ = 322150400. Its totient is φ = 104541840.

The previous prime is 189048443. The next prime is 189048481. The reversal of 189048447 is 744840981.

It is not a de Polignac number, because 189048447 - 2² = 189048443 is a prime.

It is a super-2 number, since 2×189048447² = 71478630626223618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189048443) 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, 46447 + ... + 50352.

Almost surely, 2^189048447 is an apocalyptic number.

189048447 is a deficient number, since it is larger than the sum of its proper divisors (133101953).

189048447 is a wasteful number, since it uses less digits than its factorization.

189048447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96843 (or 96840 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 189048447 is about 13749.4889723218. The cubic root of 189048447 is about 573.9283854452.

The spelling of 189048447 in words is "one hundred eighty-nine million, forty-eight thousand, four hundred forty-seven".