22803397 has 2 divisors, whose sum is σ = 22803398. Its totient is φ = 22803396.

The previous prime is 22803371. The next prime is 22803427. The reversal of 22803397 is 79330822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22791076 + 12321 = 4774^2 + 111^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22803397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22803317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11401698 + 11401699.

It is an arithmetic number, because the mean of its divisors is an integer number (11401699).

Almost surely, 2^22803397 is an apocalyptic number.

22803397 is the 2553-rd centered heptagonal number.

It is an amenable number.

22803397 is a deficient number, since it is larger than the sum of its proper divisors (1).

22803397 is an equidigital number, since it uses as much as digits as its factorization.

22803397 is an evil number, because the sum of its binary digits is even.

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

The square root of 22803397 is about 4775.2902529585. The cubic root of 22803397 is about 283.5740697545.

The spelling of 22803397 in words is "twenty-two million, eight hundred three thousand, three hundred ninety-seven".