22704037 has 4 divisors (see below), whose sum is σ = 23257836. Its totient is φ = 22150240.

The previous prime is 22704029. The next prime is 22704041. The reversal of 22704037 is 73040722.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73040722 = 2 ⋅36520361.

It can be written as a sum of positive squares in 2 ways, for example, as 6974881 + 15729156 = 2641^2 + 3966^2 .

It is a cyclic number.

It is not a de Polignac number, because 22704037 - 2³ = 22704029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22704007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276838 + ... + 276919.

It is an arithmetic number, because the mean of its divisors is an integer number (5814459).

Almost surely, 2^22704037 is an apocalyptic number.

It is an amenable number.

22704037 is a deficient number, since it is larger than the sum of its proper divisors (553799).

22704037 is an equidigital number, since it uses as much as digits as its factorization.

22704037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553798.

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 22704037 is about 4764.8753393977. The cubic root of 22704037 is about 283.1616028158.

Adding to 22704037 its reverse (73040722), we get a palindrome (95744759).

The spelling of 22704037 in words is "twenty-two million, seven hundred four thousand, thirty-seven".