22748477 has 4 divisors (see below), whose sum is σ = 22969440. Its totient is φ = 22527516.

The previous prime is 22748461. The next prime is 22748483. The reversal of 22748477 is 77484722.

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 a cyclic number.

It is not a de Polignac number, because 22748477 - 2⁴ = 22748461 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 (22748417) 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, 110327 + ... + 110532.

It is an arithmetic number, because the mean of its divisors is an integer number (5742360).

Almost surely, 2^22748477 is an apocalyptic number.

It is an amenable number.

22748477 is a deficient number, since it is larger than the sum of its proper divisors (220963).

22748477 is a wasteful number, since it uses less digits than its factorization.

22748477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220962.

The product of its digits is 175616, while the sum is 41.

The square root of 22748477 is about 4769.5363506320. The cubic root of 22748477 is about 283.3462322463.

The spelling of 22748477 in words is "twenty-two million, seven hundred forty-eight thousand, four hundred seventy-seven".