875449117 has 2 divisors, whose sum is σ = 875449118. Its totient is φ = 875449116.

The previous prime is 875449109. The next prime is 875449121. The reversal of 875449117 is 711944578.

It is a happy number.

875449117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 555969241 + 319479876 = 23579^2 + 17874^2 .

It is a cyclic number.

It is not a de Polignac number, because 875449117 - 2³ = 875449109 is a prime.

It is a super-2 number, since 2×875449117² = 1532822312912159378, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (875449217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 437724558 + 437724559.

It is an arithmetic number, because the mean of its divisors is an integer number (437724559).

Almost surely, 2^875449117 is an apocalyptic number.

It is an amenable number.

875449117 is a deficient number, since it is larger than the sum of its proper divisors (1).

875449117 is an equidigital number, since it uses as much as digits as its factorization.

875449117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 46.

The square root of 875449117 is about 29587.9894044864. The cubic root of 875449117 is about 956.6292071891.

The spelling of 875449117 in words is "eight hundred seventy-five million, four hundred forty-nine thousand, one hundred seventeen".