189796678 has 8 divisors (see below), whose sum is σ = 284786280. Its totient is φ = 94867920.

The previous prime is 189796639. The next prime is 189796697. The reversal of 189796678 is 876697981.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6388 + ... + 20503.

It is an arithmetic number, because the mean of its divisors is an integer number (35598285).

Almost surely, 2^189796678 is an apocalyptic number.

189796678 is a deficient number, since it is larger than the sum of its proper divisors (94989602).

189796678 is a wasteful number, since it uses less digits than its factorization.

189796678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30422.

The product of its digits is 9144576, while the sum is 61.

The square root of 189796678 is about 13776.6715138309. The cubic root of 189796678 is about 574.6845685182.

The spelling of 189796678 in words is "one hundred eighty-nine million, seven hundred ninety-six thousand, six hundred seventy-eight".