22223947 has 16 divisors (see below), whose sum is σ = 24775200. Its totient is φ = 19837440.

The previous prime is 22223941. The next prime is 22223951. The reversal of 22223947 is 74932222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22223947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22223941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29704 + ... + 30442.

It is an arithmetic number, because the mean of its divisors is an integer number (1548450).

Almost surely, 2^22223947 is an apocalyptic number.

22223947 is a deficient number, since it is larger than the sum of its proper divisors (2551253).

22223947 is a wasteful number, since it uses less digits than its factorization.

22223947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846.

The product of its digits is 12096, while the sum is 31.

The square root of 22223947 is about 4714.2281446701. The cubic root of 22223947 is about 281.1514952487.

The spelling of 22223947 in words is "twenty-two million, two hundred twenty-three thousand, nine hundred forty-seven".