22861837 has 2 divisors, whose sum is σ = 22861838. Its totient is φ = 22861836.

The previous prime is 22861829. The next prime is 22861841. The reversal of 22861837 is 73816822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19527561 + 3334276 = 4419^2 + 1826^2 .

It is a cyclic number.

It is not a de Polignac number, because 22861837 - 2³ = 22861829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22861796 and 22861805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22861877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11430918 + 11430919.

It is an arithmetic number, because the mean of its divisors is an integer number (11430919).

Almost surely, 2^22861837 is an apocalyptic number.

It is an amenable number.

22861837 is a deficient number, since it is larger than the sum of its proper divisors (1).

22861837 is an equidigital number, since it uses as much as digits as its factorization.

22861837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 37.

The square root of 22861837 is about 4781.4053373459. The cubic root of 22861837 is about 283.8161087209.

The spelling of 22861837 in words is "twenty-two million, eight hundred sixty-one thousand, eight hundred thirty-seven".