190950889 has 2 divisors, whose sum is σ = 190950890. Its totient is φ = 190950888.

The previous prime is 190950869. The next prime is 190950901. The reversal of 190950889 is 988059091.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155750400 + 35200489 = 12480^2 + 5933^2 .

It is a cyclic number.

It is not a de Polignac number, because 190950889 - 2⁵ = 190950857 is a prime.

It is not a weakly prime, because it can be changed into another prime (190950829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95475444 + 95475445.

It is an arithmetic number, because the mean of its divisors is an integer number (95475445).

Almost surely, 2^190950889 is an apocalyptic number.

It is an amenable number.

190950889 is a deficient number, since it is larger than the sum of its proper divisors (1).

190950889 is an equidigital number, since it uses as much as digits as its factorization.

190950889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 49.

The square root of 190950889 is about 13818.4980732350. The cubic root of 190950889 is about 575.8471585614.

The spelling of 190950889 in words is "one hundred ninety million, nine hundred fifty thousand, eight hundred eighty-nine".