22653943 has 6 divisors (see below), whose sum is σ = 24530784. Its totient is φ = 20911176.

The previous prime is 22653929. The next prime is 22653989. The reversal of 22653943 is 34935622.

It is a de Polignac number, because none of the positive numbers 2^k-22653943 is a prime.

It is a super-2 number, since 2×22653943² = 1026402266894498, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22653899 and 22653908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22651943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66855 + ... + 67192.

It is an arithmetic number, because the mean of its divisors is an integer number (4088464).

Almost surely, 2^22653943 is an apocalyptic number.

22653943 is a deficient number, since it is larger than the sum of its proper divisors (1876841).

22653943 is a wasteful number, since it uses less digits than its factorization.

22653943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134073 (or 134060 counting only the distinct ones).

The product of its digits is 38880, while the sum is 34.

The square root of 22653943 is about 4759.6158458430. The cubic root of 22653943 is about 282.9531943219.

The spelling of 22653943 in words is "twenty-two million, six hundred fifty-three thousand, nine hundred forty-three".