189350979 has 8 divisors (see below), whose sum is σ = 265755840. Its totient is φ = 119590056.

The previous prime is 189350969. The next prime is 189350989. The reversal of 189350979 is 979053981.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (189350969) and next prime (189350989).

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

It is not a de Polignac number, because 189350979 - 2⁴ = 189350963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189350929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1660917 + ... + 1661030.

It is an arithmetic number, because the mean of its divisors is an integer number (33219480).

Almost surely, 2^189350979 is an apocalyptic number.

189350979 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

189350979 is a deficient number, since it is larger than the sum of its proper divisors (76404861).

189350979 is a wasteful number, since it uses less digits than its factorization.

189350979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3321969.

The product of its (nonzero) digits is 612360, while the sum is 51.

The square root of 189350979 is about 13760.4861469354. The cubic root of 189350979 is about 574.2343725560.

The spelling of 189350979 in words is "one hundred eighty-nine million, three hundred fifty thousand, nine hundred seventy-nine".