22748961 has 4 divisors (see below), whose sum is σ = 30331952. Its totient is φ = 15165972.

The previous prime is 22748959. The next prime is 22748977. The reversal of 22748961 is 16984722.

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.

It is not a de Polignac number, because 22748961 - 2¹ = 22748959 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 (22748951) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 3791491 + ... + 3791496.

It is an arithmetic number, because the mean of its divisors is an integer number (7582988).

Almost surely, 2^22748961 is an apocalyptic number.

It is an amenable number.

22748961 is a deficient number, since it is larger than the sum of its proper divisors (7582991).

22748961 is an equidigital number, since it uses as much as digits as its factorization.

22748961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7582990.

The product of its digits is 48384, while the sum is 39.

The square root of 22748961 is about 4769.5870890466. The cubic root of 22748961 is about 283.3482417376.

The spelling of 22748961 in words is "twenty-two million, seven hundred forty-eight thousand, nine hundred sixty-one".