189667984 has 45 divisors (see below), whose sum is σ = 405220809. Its totient is φ = 85937280.

The previous prime is 189667939. The next prime is 189667993. The reversal of 189667984 is 489766981.

The square root of 189667984 is 13772.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1210000 + 188457984 = 1100^2 + 13728^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 605812 + ... + 606124.

Almost surely, 2^189667984 is an apocalyptic number.

189667984 is the 13772-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189667984

189667984 is an abundant number, since it is smaller than the sum of its proper divisors (215552825).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189667984 is an equidigital number, since it uses as much as digits as its factorization.

189667984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656 (or 326 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 58.

The cubic root of 189667984 is about 574.5546484742.

The spelling of 189667984 in words is "one hundred eighty-nine million, six hundred sixty-seven thousand, nine hundred eighty-four".