406227839 has 2 divisors, whose sum is σ = 406227840. Its totient is φ = 406227838.

The previous prime is 406227823. The next prime is 406227907. The reversal of 406227839 is 938722604.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 406227839 - 2⁴ = 406227823 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 406227796 and 406227805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406220839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203113919 + 203113920.

It is an arithmetic number, because the mean of its divisors is an integer number (203113920).

Almost surely, 2^406227839 is an apocalyptic number.

406227839 is a deficient number, since it is larger than the sum of its proper divisors (1).

406227839 is an equidigital number, since it uses as much as digits as its factorization.

406227839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 406227839 is about 20155.0946164983. The cubic root of 406227839 is about 740.6105498056.

The spelling of 406227839 in words is "four hundred six million, two hundred twenty-seven thousand, eight hundred thirty-nine".