22872247 has 2 divisors, whose sum is σ = 22872248. Its totient is φ = 22872246.

The previous prime is 22872211. The next prime is 22872299. The reversal of 22872247 is 74227822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22872247 - 2⁷ = 22872119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22875247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11436123 + 11436124.

It is an arithmetic number, because the mean of its divisors is an integer number (11436124).

Almost surely, 2^22872247 is an apocalyptic number.

22872247 is a deficient number, since it is larger than the sum of its proper divisors (1).

22872247 is an equidigital number, since it uses as much as digits as its factorization.

22872247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25088, while the sum is 34.

The square root of 22872247 is about 4782.4938055370. The cubic root of 22872247 is about 283.8591801703.

The spelling of 22872247 in words is "twenty-two million, eight hundred seventy-two thousand, two hundred forty-seven".