190828877 has 2 divisors, whose sum is σ = 190828878. Its totient is φ = 190828876.

The previous prime is 190828873. The next prime is 190828889. The reversal of 190828877 is 778828091.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101223721 + 89605156 = 10061^2 + 9466^2 .

It is a cyclic number.

It is not a de Polignac number, because 190828877 - 2² = 190828873 is a prime.

It is a super-2 number, since 2×190828877² = 72831320594162258, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190828873) 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 as a sum of consecutive naturals, namely, 95414438 + 95414439.

It is an arithmetic number, because the mean of its divisors is an integer number (95414439).

Almost surely, 2^190828877 is an apocalyptic number.

It is an amenable number.

190828877 is a deficient number, since it is larger than the sum of its proper divisors (1).

190828877 is an equidigital number, since it uses as much as digits as its factorization.

190828877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 451584, while the sum is 50.

The square root of 190828877 is about 13814.0825609231. The cubic root of 190828877 is about 575.7244826316.

The spelling of 190828877 in words is "one hundred ninety million, eight hundred twenty-eight thousand, eight hundred seventy-seven".