838775890 has 16 divisors (see below), whose sum is σ = 1510306560. Its totient is φ = 335397040.

The previous prime is 838775887. The next prime is 838775911. The reversal of 838775890 is 98577838.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 21105 + ... + 46075.

It is an arithmetic number, because the mean of its divisors is an integer number (94394160).

Almost surely, 2^838775890 is an apocalyptic number.

838775890 is a deficient number, since it is larger than the sum of its proper divisors (671530670).

838775890 is a wasteful number, since it uses less digits than its factorization.

838775890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28337.

The product of its (nonzero) digits is 3386880, while the sum is 55.

The square root of 838775890 is about 28961.6278893297. The cubic root of 838775890 is about 943.0802417861.

The spelling of 838775890 in words is "eight hundred thirty-eight million, seven hundred seventy-five thousand, eight hundred ninety".