23705222 has 4 divisors (see below), whose sum is σ = 35557836. Its totient is φ = 11852610.

The previous prime is 23705219. The next prime is 23705233. The reversal of 23705222 is 22250732.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5926304 + ... + 5926307.

It is an arithmetic number, because the mean of its divisors is an integer number (8889459).

Almost surely, 2^23705222 is an apocalyptic number.

23705222 is a deficient number, since it is larger than the sum of its proper divisors (11852614).

23705222 is a wasteful number, since it uses less digits than its factorization.

23705222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11852613.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 23705222 is about 4868.8008790666. The cubic root of 23705222 is about 287.2640917966.

Adding to 23705222 its reverse (22250732), we get a palindrome (45955954).

The spelling of 23705222 in words is "twenty-three million, seven hundred five thousand, two hundred twenty-two".