857227093 has 4 divisors (see below), whose sum is σ = 860256448. Its totient is φ = 854197740.

The previous prime is 857227081. The next prime is 857227109. The reversal of 857227093 is 390722758.

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 857227093 - 2⁵ = 857227061 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 (857227073) 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, 1514253 + ... + 1514818.

It is an arithmetic number, because the mean of its divisors is an integer number (215064112).

Almost surely, 2^857227093 is an apocalyptic number.

It is an amenable number.

857227093 is a deficient number, since it is larger than the sum of its proper divisors (3029355).

857227093 is a wasteful number, since it uses less digits than its factorization.

857227093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3029354.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 857227093 is about 29278.4407542478. The cubic root of 857227093 is about 949.9453682342.

The spelling of 857227093 in words is "eight hundred fifty-seven million, two hundred twenty-seven thousand, ninety-three".