857364503 has 2 divisors, whose sum is σ = 857364504. Its totient is φ = 857364502.

The previous prime is 857364467. The next prime is 857364523. The reversal of 857364503 is 305463758.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 857364503 - 2²⁰ = 856315927 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (857364523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428682251 + 428682252.

It is an arithmetic number, because the mean of its divisors is an integer number (428682252).

Almost surely, 2^857364503 is an apocalyptic number.

857364503 is a deficient number, since it is larger than the sum of its proper divisors (1).

857364503 is an equidigital number, since it uses as much as digits as its factorization.

857364503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 41.

The square root of 857364503 is about 29280.7872674216. The cubic root of 857364503 is about 949.9961229759.

The spelling of 857364503 in words is "eight hundred fifty-seven million, three hundred sixty-four thousand, five hundred three".