189355379 has 8 divisors (see below), whose sum is σ = 193167072. Its totient is φ = 185552640.

The previous prime is 189355373. The next prime is 189355399. The reversal of 189355379 is 973553981.

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

It is a cyclic number.

It is not a de Polignac number, because 189355379 - 2⁴ = 189355363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189355373) 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, 54659 + ... + 58019.

It is an arithmetic number, because the mean of its divisors is an integer number (24145884).

Almost surely, 2^189355379 is an apocalyptic number.

189355379 is a deficient number, since it is larger than the sum of its proper divisors (3811693).

189355379 is a wasteful number, since it uses less digits than its factorization.

189355379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4477.

The product of its digits is 1020600, while the sum is 50.

The square root of 189355379 is about 13760.6460240790. The cubic root of 189355379 is about 574.2388204015.

The spelling of 189355379 in words is "one hundred eighty-nine million, three hundred fifty-five thousand, three hundred seventy-nine".