22473247 has 2 divisors, whose sum is σ = 22473248. Its totient is φ = 22473246.

The previous prime is 22473239. The next prime is 22473259. The reversal of 22473247 is 74237422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22473247 - 2³ = 22473239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22473547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11236623 + 11236624.

It is an arithmetic number, because the mean of its divisors is an integer number (11236624).

Almost surely, 2^22473247 is an apocalyptic number.

22473247 is a deficient number, since it is larger than the sum of its proper divisors (1).

22473247 is an equidigital number, since it uses as much as digits as its factorization.

22473247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18816, while the sum is 31.

The square root of 22473247 is about 4740.5956376810. The cubic root of 22473247 is about 282.1988730129.

It can be divided in two parts, 2 and 2473247, that multiplied together give a palindrome (4946494).

The spelling of 22473247 in words is "twenty-two million, four hundred seventy-three thousand, two hundred forty-seven".