22873997 has 2 divisors, whose sum is σ = 22873998. Its totient is φ = 22873996.

The previous prime is 22873987. The next prime is 22874017. The reversal of 22873997 is 79937822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22762441 + 111556 = 4771^2 + 334^2 .

It is a cyclic number.

It is not a de Polignac number, because 22873997 - 2²² = 18679693 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22873927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11436998 + 11436999.

It is an arithmetic number, because the mean of its divisors is an integer number (11436999).

Almost surely, 2^22873997 is an apocalyptic number.

It is an amenable number.

22873997 is a deficient number, since it is larger than the sum of its proper divisors (1).

22873997 is an equidigital number, since it uses as much as digits as its factorization.

22873997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 47.

The square root of 22873997 is about 4782.6767609781. The cubic root of 22873997 is about 283.8664195245.

The spelling of 22873997 in words is "twenty-two million, eight hundred seventy-three thousand, nine hundred ninety-seven".