22700609 has 4 divisors (see below), whose sum is σ = 23687616. Its totient is φ = 21713604.

The previous prime is 22700569. The next prime is 22700651. The reversal of 22700609 is 90600722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90600722 = 2 ⋅45300361.

It is a cyclic number.

It is not a de Polignac number, because 22700609 - 2¹⁶ = 22635073 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22700669) 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, 493469 + ... + 493514.

It is an arithmetic number, because the mean of its divisors is an integer number (5921904).

Almost surely, 2^22700609 is an apocalyptic number.

It is an amenable number.

22700609 is a deficient number, since it is larger than the sum of its proper divisors (987007).

22700609 is an equidigital number, since it uses as much as digits as its factorization.

22700609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987006.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 22700609 is about 4764.5156102168. The cubic root of 22700609 is about 283.1473509182.

The spelling of 22700609 in words is "twenty-two million, seven hundred thousand, six hundred nine".