22071839 has 2 divisors, whose sum is σ = 22071840. Its totient is φ = 22071838.

The previous prime is 22071809. The next prime is 22071851. The reversal of 22071839 is 93817022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22071839 - 2⁸ = 22071583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22071809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11035919 + 11035920.

It is an arithmetic number, because the mean of its divisors is an integer number (11035920).

Almost surely, 2^22071839 is an apocalyptic number.

22071839 is a deficient number, since it is larger than the sum of its proper divisors (1).

22071839 is an equidigital number, since it uses as much as digits as its factorization.

22071839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 22071839 is about 4698.0675814637. The cubic root of 22071839 is about 280.5085951804.

The spelling of 22071839 in words is "twenty-two million, seventy-one thousand, eight hundred thirty-nine".