857861241 has 8 divisors (see below), whose sum is σ = 1143968064. Its totient is φ = 571830960.

The previous prime is 857861231. The next prime is 857861287. The reversal of 857861241 is 142168758.

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

It is not a de Polignac number, because 857861241 - 2⁶ = 857861177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 857861193 and 857861202.

It is not an unprimeable number, because it can be changed into a prime (857861201) 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, 16500 + ... + 44586.

It is an arithmetic number, because the mean of its divisors is an integer number (142996008).

Almost surely, 2^857861241 is an apocalyptic number.

It is an amenable number.

857861241 is a deficient number, since it is larger than the sum of its proper divisors (286106823).

857861241 is a wasteful number, since it uses less digits than its factorization.

857861241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38271.

The product of its digits is 107520, while the sum is 42.

The square root of 857861241 is about 29289.2683589058. The cubic root of 857861241 is about 950.1795564575.

The spelling of 857861241 in words is "eight hundred fifty-seven million, eight hundred sixty-one thousand, two hundred forty-one".