22986437 has 2 divisors, whose sum is σ = 22986438. Its totient is φ = 22986436.

The previous prime is 22986419. The next prime is 22986443. The reversal of 22986437 is 73468922.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16273156 + 6713281 = 4034^2 + 2591^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22986437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22986394 and 22986403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22986497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11493218 + 11493219.

It is an arithmetic number, because the mean of its divisors is an integer number (11493219).

Almost surely, 2^22986437 is an apocalyptic number.

It is an amenable number.

22986437 is a deficient number, since it is larger than the sum of its proper divisors (1).

22986437 is an equidigital number, since it uses as much as digits as its factorization.

22986437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 41.

The square root of 22986437 is about 4794.4172742889. The cubic root of 22986437 is about 284.3307864603.

The spelling of 22986437 in words is "twenty-two million, nine hundred eighty-six thousand, four hundred thirty-seven".