857441427 has 8 divisors (see below), whose sum is σ = 1210505616. Its totient is φ = 538002432.

The previous prime is 857441423. The next prime is 857441447. The reversal of 857441427 is 724144758.

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

It is not a de Polignac number, because 857441427 - 2² = 857441423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (857441423) 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, 8406238 + ... + 8406339.

It is an arithmetic number, because the mean of its divisors is an integer number (151313202).

Almost surely, 2^857441427 is an apocalyptic number.

857441427 is a deficient number, since it is larger than the sum of its proper divisors (353064189).

857441427 is a wasteful number, since it uses less digits than its factorization.

857441427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16812597.

The product of its digits is 250880, while the sum is 42.

The square root of 857441427 is about 29282.1007955372. The cubic root of 857441427 is about 950.0245338078.

The spelling of 857441427 in words is "eight hundred fifty-seven million, four hundred forty-one thousand, four hundred twenty-seven".