858463 has 2 divisors, whose sum is σ = 858464. Its totient is φ = 858462.

The previous prime is 858457. The next prime is 858467. The reversal of 858463 is 364858.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 858463 - 2⁹ = 857951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (858467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429231 + 429232.

It is an arithmetic number, because the mean of its divisors is an integer number (429232).

2⁸⁵⁸⁴⁶³ is an apocalyptic number.

858463 is a deficient number, since it is larger than the sum of its proper divisors (1).

858463 is an equidigital number, since it uses as much as digits as its factorization.

858463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 34.

The square root of 858463 is about 926.5327840935. The cubic root of 858463 is about 95.0401676862.

It can be divided in two parts, 85846 and 3, that added together give a square (85849 = 293²).

The spelling of 858463 in words is "eight hundred fifty-eight thousand, four hundred sixty-three".