189856883 has 2 divisors, whose sum is σ = 189856884. Its totient is φ = 189856882.

The previous prime is 189856819. The next prime is 189856897. The reversal of 189856883 is 388658981.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 189856883 - 2⁶ = 189856819 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (189856783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94928441 + 94928442.

It is an arithmetic number, because the mean of its divisors is an integer number (94928442).

Almost surely, 2^189856883 is an apocalyptic number.

189856883 is a deficient number, since it is larger than the sum of its proper divisors (1).

189856883 is an equidigital number, since it uses as much as digits as its factorization.

189856883 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3317760, while the sum is 56.

The square root of 189856883 is about 13778.8563748956. The cubic root of 189856883 is about 574.7453269170.

The spelling of 189856883 in words is "one hundred eighty-nine million, eight hundred fifty-six thousand, eight hundred eighty-three".