406536839 has 2 divisors, whose sum is σ = 406536840. Its totient is φ = 406536838.

The previous prime is 406536751. The next prime is 406536857. The reversal of 406536839 is 938635604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 406536839 - 2¹² = 406532743 is a prime.

It is a super-2 number, since 2×406536839² = 330544402928223842, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 406536839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406536859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203268419 + 203268420.

It is an arithmetic number, because the mean of its divisors is an integer number (203268420).

Almost surely, 2^406536839 is an apocalyptic number.

406536839 is a deficient number, since it is larger than the sum of its proper divisors (1).

406536839 is an equidigital number, since it uses as much as digits as its factorization.

406536839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 44.

The square root of 406536839 is about 20162.7587150171. The cubic root of 406536839 is about 740.7982857158.

It can be divided in two parts, 4065 and 36839, that added together give a palindrome (40904).

The spelling of 406536839 in words is "four hundred six million, five hundred thirty-six thousand, eight hundred thirty-nine".