858257963 has 2 divisors, whose sum is σ = 858257964. Its totient is φ = 858257962.

The previous prime is 858257951. The next prime is 858257969. The reversal of 858257963 is 369752858.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 858257963 - 2¹⁰ = 858256939 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (858257969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429128981 + 429128982.

It is an arithmetic number, because the mean of its divisors is an integer number (429128982).

Almost surely, 2^858257963 is an apocalyptic number.

858257963 is a deficient number, since it is larger than the sum of its proper divisors (1).

858257963 is an equidigital number, since it uses as much as digits as its factorization.

858257963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 53.

The square root of 858257963 is about 29296.0400566356. The cubic root of 858257963 is about 950.3260055654.

The spelling of 858257963 in words is "eight hundred fifty-eight million, two hundred fifty-seven thousand, nine hundred sixty-three".