23221654 has 4 divisors (see below), whose sum is σ = 34832484. Its totient is φ = 11610826.

The previous prime is 23221631. The next prime is 23221669. The reversal of 23221654 is 45612232.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 5805412 + ... + 5805415.

It is an arithmetic number, because the mean of its divisors is an integer number (8708121).

Almost surely, 2^23221654 is an apocalyptic number.

23221654 is a deficient number, since it is larger than the sum of its proper divisors (11610830).

23221654 is a wasteful number, since it uses less digits than its factorization.

23221654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11610829.

The product of its digits is 2880, while the sum is 25.

The square root of 23221654 is about 4818.8851407769. The cubic root of 23221654 is about 285.2973361412.

Adding to 23221654 its reverse (45612232), we get a palindrome (68833886).

The spelling of 23221654 in words is "twenty-three million, two hundred twenty-one thousand, six hundred fifty-four".