857852747 has 2 divisors, whose sum is σ = 857852748. Its totient is φ = 857852746.

The previous prime is 857852731. The next prime is 857852761. The reversal of 857852747 is 747258758.

857852747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 857852747 - 2⁴ = 857852731 is a prime.

It is a super-2 number, since 2×857852747² = 1471822671070892018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (857852767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428926373 + 428926374.

It is an arithmetic number, because the mean of its divisors is an integer number (428926374).

Almost surely, 2^857852747 is an apocalyptic number.

857852747 is a deficient number, since it is larger than the sum of its proper divisors (1).

857852747 is an equidigital number, since it uses as much as digits as its factorization.

857852747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4390400, while the sum is 53.

The square root of 857852747 is about 29289.1233566319. The cubic root of 857852747 is about 950.1764204213.

The spelling of 857852747 in words is "eight hundred fifty-seven million, eight hundred fifty-two thousand, seven hundred forty-seven".