22830397 has 2 divisors, whose sum is σ = 22830398. Its totient is φ = 22830396.

The previous prime is 22830389. The next prime is 22830413. The reversal of 22830397 is 79303822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21771556 + 1058841 = 4666^2 + 1029^2 .

It is a cyclic number.

It is not a de Polignac number, because 22830397 - 2³ = 22830389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22831397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11415198 + 11415199.

It is an arithmetic number, because the mean of its divisors is an integer number (11415199).

Almost surely, 2^22830397 is an apocalyptic number.

It is an amenable number.

22830397 is a deficient number, since it is larger than the sum of its proper divisors (1).

22830397 is an equidigital number, since it uses as much as digits as its factorization.

22830397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 22830397 is about 4778.1164699074. The cubic root of 22830397 is about 283.6859460686.

It can be divided in two parts, 228 and 30397, that added together give a square (30625 = 175²).

The spelling of 22830397 in words is "twenty-two million, eight hundred thirty thousand, three hundred ninety-seven".