85875421 has 8 divisors (see below), whose sum is σ = 90534080. Its totient is φ = 81230688.

The previous prime is 85875403. The next prime is 85875437. The reversal of 85875421 is 12457858.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85875421 - 2⁹ = 85874909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85875401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10705 + ... + 16921.

It is an arithmetic number, because the mean of its divisors is an integer number (11316760).

Almost surely, 2^85875421 is an apocalyptic number.

It is an amenable number.

85875421 is a deficient number, since it is larger than the sum of its proper divisors (4658659).

85875421 is a wasteful number, since it uses less digits than its factorization.

85875421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6963.

The product of its digits is 89600, while the sum is 40.

The square root of 85875421 is about 9266.8992117105. The cubic root of 85875421 is about 441.1872566855.

The spelling of 85875421 in words is "eighty-five million, eight hundred seventy-five thousand, four hundred twenty-one".