422924839 has 2 divisors, whose sum is σ = 422924840. Its totient is φ = 422924838.

The previous prime is 422924807. The next prime is 422924849. The reversal of 422924839 is 938429224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 422924839 - 2⁵ = 422924807 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 422924795 and 422924804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422924849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211462419 + 211462420.

It is an arithmetic number, because the mean of its divisors is an integer number (211462420).

Almost surely, 2^422924839 is an apocalyptic number.

422924839 is a deficient number, since it is larger than the sum of its proper divisors (1).

422924839 is an equidigital number, since it uses as much as digits as its factorization.

422924839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 43.

The square root of 422924839 is about 20565.1364935903. The cubic root of 422924839 is about 750.6216114714.

The spelling of 422924839 in words is "four hundred twenty-two million, nine hundred twenty-four thousand, eight hundred thirty-nine".