22713473 has 4 divisors (see below), whose sum is σ = 22723008. Its totient is φ = 22703940.

The previous prime is 22713461. The next prime is 22713487. The reversal of 22713473 is 37431722.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22713473 - 2⁸ = 22713217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22713413) 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, 2228 + ... + 7098.

It is an arithmetic number, because the mean of its divisors is an integer number (5680752).

Almost surely, 2^22713473 is an apocalyptic number.

It is an amenable number.

22713473 is a deficient number, since it is larger than the sum of its proper divisors (9535).

22713473 is an equidigital number, since it uses as much as digits as its factorization.

22713473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9534.

The product of its digits is 7056, while the sum is 29.

The square root of 22713473 is about 4765.8653988547. The cubic root of 22713473 is about 283.2008255439.

The spelling of 22713473 in words is "twenty-two million, seven hundred thirteen thousand, four hundred seventy-three".