857609053 has 8 divisors (see below), whose sum is σ = 981782208. Its totient is φ = 733850304.

The previous prime is 857609041. The next prime is 857609131. The reversal of 857609053 is 350906758.

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 857609053 - 2⁵ = 857609021 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 (857609033) 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, 99151 + ... + 107452.

It is an arithmetic number, because the mean of its divisors is an integer number (122722776).

Almost surely, 2^857609053 is an apocalyptic number.

It is an amenable number.

857609053 is a deficient number, since it is larger than the sum of its proper divisors (124173155).

857609053 is a wasteful number, since it uses less digits than its factorization.

857609053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207203.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 857609053 is about 29284.9629161452. The cubic root of 857609053 is about 950.0864383030.

The spelling of 857609053 in words is "eight hundred fifty-seven million, six hundred nine thousand, fifty-three".