857574241 has 4 divisors (see below), whose sum is σ = 877517872. Its totient is φ = 837630612.

The previous prime is 857574233. The next prime is 857574259. The reversal of 857574241 is 142475758.

857574241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 857574241 - 2³ = 857574233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 19943587 = 857574241 / (8 + 5 + 7 + 5 + 7 + 4 + 2 + 4 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (857571241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9971751 + ... + 9971836.

It is an arithmetic number, because the mean of its divisors is an integer number (219379468).

Almost surely, 2^857574241 is an apocalyptic number.

It is an amenable number.

857574241 is a deficient number, since it is larger than the sum of its proper divisors (19943631).

857574241 is a wasteful number, since it uses less digits than its factorization.

857574241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19943630.

The product of its digits is 313600, while the sum is 43.

The square root of 857574241 is about 29284.3685436446. The cubic root of 857574241 is about 950.0735828508.

It can be divided in two parts, 85757 and 4241, that added together give a palindrome (89998).

The spelling of 857574241 in words is "eight hundred fifty-seven million, five hundred seventy-four thousand, two hundred forty-one".