22384997 has 2 divisors, whose sum is σ = 22384998. Its totient is φ = 22384996.

The previous prime is 22384993. The next prime is 22385053. The reversal of 22384997 is 79948322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12737761 + 9647236 = 3569^2 + 3106^2 .

It is a cyclic number.

It is not a de Polignac number, because 22384997 - 2² = 22384993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22384993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11192498 + 11192499.

It is an arithmetic number, because the mean of its divisors is an integer number (11192499).

Almost surely, 2^22384997 is an apocalyptic number.

It is an amenable number.

22384997 is a deficient number, since it is larger than the sum of its proper divisors (1).

22384997 is an equidigital number, since it uses as much as digits as its factorization.

22384997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 44.

The square root of 22384997 is about 4731.2785798344. The cubic root of 22384997 is about 281.8290003320.

The spelling of 22384997 in words is "twenty-two million, three hundred eighty-four thousand, nine hundred ninety-seven".