22735813 has 4 divisors (see below), whose sum is σ = 22899520. Its totient is φ = 22572108.

The previous prime is 22735789. The next prime is 22735819. The reversal of 22735813 is 31853722.

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: 31853722 = 2 ⋅15926861.

It is a cyclic number.

It is not a de Polignac number, because 22735813 - 2⁹ = 22735301 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 (22735819) 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, 81645 + ... + 81922.

It is an arithmetic number, because the mean of its divisors is an integer number (5724880).

Almost surely, 2^22735813 is an apocalyptic number.

It is an amenable number.

22735813 is a deficient number, since it is larger than the sum of its proper divisors (163707).

22735813 is a wasteful number, since it uses less digits than its factorization.

22735813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163706.

The product of its digits is 10080, while the sum is 31.

The square root of 22735813 is about 4768.2085734582. The cubic root of 22735813 is about 283.2936431908.

The spelling of 22735813 in words is "twenty-two million, seven hundred thirty-five thousand, eight hundred thirteen".