857541073 has 2 divisors, whose sum is σ = 857541074. Its totient is φ = 857541072.

The previous prime is 857541029. The next prime is 857541089. The reversal of 857541073 is 370145758.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 753337809 + 104203264 = 27447^2 + 10208^2 .

It is a cyclic number.

It is not a de Polignac number, because 857541073 - 2²⁵ = 823986641 is a prime.

It is not a weakly prime, because it can be changed into another prime (857541673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428770536 + 428770537.

It is an arithmetic number, because the mean of its divisors is an integer number (428770537).

Almost surely, 2^857541073 is an apocalyptic number.

It is an amenable number.

857541073 is a deficient number, since it is larger than the sum of its proper divisors (1).

857541073 is an equidigital number, since it uses as much as digits as its factorization.

857541073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 857541073 is about 29283.8022292188. The cubic root of 857541073 is about 950.0613341749.

The spelling of 857541073 in words is "eight hundred fifty-seven million, five hundred forty-one thousand, seventy-three".