22839247 has 2 divisors, whose sum is σ = 22839248. Its totient is φ = 22839246.

The previous prime is 22839241. The next prime is 22839251. The reversal of 22839247 is 74293822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22839247 - 2³ = 22839239 is a prime.

It is equal to p_1438696 and since 22839247 and 1438696 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22839241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11419623 + 11419624.

It is an arithmetic number, because the mean of its divisors is an integer number (11419624).

Almost surely, 2^22839247 is an apocalyptic number.

22839247 is a deficient number, since it is larger than the sum of its proper divisors (1).

22839247 is an equidigital number, since it uses as much as digits as its factorization.

22839247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 37.

The square root of 22839247 is about 4779.0424773170. The cubic root of 22839247 is about 283.7225974430.

The spelling of 22839247 in words is "twenty-two million, eight hundred thirty-nine thousand, two hundred forty-seven".