875955621 has 16 divisors (see below), whose sum is σ = 1227502080. Its totient is φ = 554555760.

The previous prime is 875955601. The next prime is 875955629. The reversal of 875955621 is 126559578.

It is a happy number.

It is not a de Polignac number, because 875955621 - 2⁶ = 875955557 is a prime.

It is a super-2 number, since 2×875955621² = 1534596499922991282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (875955629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36075 + ... + 55256.

It is an arithmetic number, because the mean of its divisors is an integer number (76718880).

Almost surely, 2^875955621 is an apocalyptic number.

It is an amenable number.

875955621 is a deficient number, since it is larger than the sum of its proper divisors (351546459).

875955621 is a wasteful number, since it uses less digits than its factorization.

875955621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91496.

The product of its digits is 756000, while the sum is 48.

The square root of 875955621 is about 29596.5474506740. The cubic root of 875955621 is about 956.8136622669.

The spelling of 875955621 in words is "eight hundred seventy-five million, nine hundred fifty-five thousand, six hundred twenty-one".