406859 has 2 divisors, whose sum is σ = 406860. Its totient is φ = 406858.

The previous prime is 406837. The next prime is 406873. The reversal of 406859 is 958604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 406859 - 2¹² = 402763 is a prime.

It is a super-3 number, since 3×406859³ = 202047293234693337, which contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (406559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203429 + 203430.

It is an arithmetic number, because the mean of its divisors is an integer number (203430).

2⁴⁰⁶⁸⁵⁹ is an apocalyptic number.

406859 is a deficient number, since it is larger than the sum of its proper divisors (1).

406859 is an equidigital number, since it uses as much as digits as its factorization.

406859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 406859 is about 637.8549991965. The cubic root of 406859 is about 74.0993916452.

The spelling of 406859 in words is "four hundred six thousand, eight hundred fifty-nine".