189833983 has 2 divisors, whose sum is σ = 189833984. Its totient is φ = 189833982.

The previous prime is 189833953. The next prime is 189833999. The reversal of 189833983 is 389338981.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 189833983 - 2¹⁷ = 189702911 is a prime.

It is a super-2 number, since 2×189833983² = 72073882203288578, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 189833983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189833933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94916991 + 94916992.

It is an arithmetic number, because the mean of its divisors is an integer number (94916992).

Almost surely, 2^189833983 is an apocalyptic number.

189833983 is a deficient number, since it is larger than the sum of its proper divisors (1).

189833983 is an equidigital number, since it uses as much as digits as its factorization.

189833983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 52.

The square root of 189833983 is about 13778.0253665030. The cubic root of 189833983 is about 574.7222179362.

The spelling of 189833983 in words is "one hundred eighty-nine million, eight hundred thirty-three thousand, nine hundred eighty-three".