189879293 has 8 divisors (see below), whose sum is σ = 201853920. Its totient is φ = 178102800.

The previous prime is 189879281. The next prime is 189879359. The reversal of 189879293 is 392978981.

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 189879293 - 2¹⁴ = 189862909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189879793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47555 + ... + 51392.

It is an arithmetic number, because the mean of its divisors is an integer number (25231740).

Almost surely, 2^189879293 is an apocalyptic number.

It is an amenable number.

189879293 is a deficient number, since it is larger than the sum of its proper divisors (11974627).

189879293 is a wasteful number, since it uses less digits than its factorization.

189879293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99067.

The product of its digits is 1959552, while the sum is 56.

The square root of 189879293 is about 13779.6695533674. The cubic root of 189879293 is about 574.7679396272.

The spelling of 189879293 in words is "one hundred eighty-nine million, eight hundred seventy-nine thousand, two hundred ninety-three".