189674619 has 8 divisors (see below), whose sum is σ = 253231440. Its totient is φ = 126283776.

The previous prime is 189674609. The next prime is 189674621. The reversal of 189674619 is 916476981.

It is a happy number.

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

It is not a de Polignac number, because 189674619 - 2¹⁶ = 189609083 is a prime.

It is a super-2 number, since 2×189674619² = 71952922185590322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (189674609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38802 + ... + 43415.

It is an arithmetic number, because the mean of its divisors is an integer number (31653930).

Almost surely, 2^189674619 is an apocalyptic number.

189674619 is a deficient number, since it is larger than the sum of its proper divisors (63556821).

189674619 is an equidigital number, since it uses as much as digits as its factorization.

189674619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82989.

The product of its digits is 653184, while the sum is 51.

The square root of 189674619 is about 13772.2408852009. The cubic root of 189674619 is about 574.5613481212.

The spelling of 189674619 in words is "one hundred eighty-nine million, six hundred seventy-four thousand, six hundred nineteen".