84226447 has 2 divisors, whose sum is σ = 84226448. Its totient is φ = 84226446.

The previous prime is 84226433. The next prime is 84226507. The reversal of 84226447 is 74462248.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84226447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84226147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42113223 + 42113224.

It is an arithmetic number, because the mean of its divisors is an integer number (42113224).

Almost surely, 2^84226447 is an apocalyptic number.

84226447 is a deficient number, since it is larger than the sum of its proper divisors (1).

84226447 is an equidigital number, since it uses as much as digits as its factorization.

84226447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86016, while the sum is 37.

The square root of 84226447 is about 9177.4967719962. The cubic root of 84226447 is about 438.3451041222.

The spelling of 84226447 in words is "eighty-four million, two hundred twenty-six thousand, four hundred forty-seven".