857542211 has 8 divisors (see below), whose sum is σ = 861132384. Its totient is φ = 853960320.

The previous prime is 857542207. The next prime is 857542241. The reversal of 857542211 is 112245758.

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 857542211 - 2² = 857542207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (857542201) 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, 278621 + ... + 281681.

It is an arithmetic number, because the mean of its divisors is an integer number (107641548).

Almost surely, 2^857542211 is an apocalyptic number.

857542211 is a deficient number, since it is larger than the sum of its proper divisors (3590173).

857542211 is a wasteful number, since it uses less digits than its factorization.

857542211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4141.

The product of its digits is 22400, while the sum is 35.

The square root of 857542211 is about 29283.8216597493. The cubic root of 857542211 is about 950.0617544343.

Adding to 857542211 its reverse (112245758), we get a palindrome (969787969).

The spelling of 857542211 in words is "eight hundred fifty-seven million, five hundred forty-two thousand, two hundred eleven".