189577216 has 24 divisors (see below), whose sum is σ = 379065960. Its totient is φ = 94787584.

The previous prime is 189577181. The next prime is 189577243. The reversal of 189577216 is 612775981.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44236 + ... + 48331.

It is an arithmetic number, because the mean of its divisors is an integer number (15794415).

Almost surely, 2^189577216 is an apocalyptic number.

189577216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

189577216 is a deficient number, since it is larger than the sum of its proper divisors (189488744).

189577216 is an frugal number, since it uses more digits than its factorization.

189577216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92589 (or 92569 counting only the distinct ones).

The product of its digits is 211680, while the sum is 46.

The square root of 189577216 is about 13768.7042237097. The cubic root of 189577216 is about 574.4629803978.

The spelling of 189577216 in words is "one hundred eighty-nine million, five hundred seventy-seven thousand, two hundred sixteen".