22782473 has 8 divisors (see below), whose sum is σ = 26121792. Its totient is φ = 19464336.

The previous prime is 22782457. The next prime is 22782493. The reversal of 22782473 is 37428722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22782473 - 2⁴ = 22782457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22782413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2915 + ... + 7352.

It is an arithmetic number, because the mean of its divisors is an integer number (3265224).

Almost surely, 2^22782473 is an apocalyptic number.

It is an amenable number.

22782473 is a deficient number, since it is larger than the sum of its proper divisors (3339319).

22782473 is a wasteful number, since it uses less digits than its factorization.

22782473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10591.

The product of its digits is 37632, while the sum is 35.

The square root of 22782473 is about 4773.0988885629. The cubic root of 22782473 is about 283.4873090029.

The spelling of 22782473 in words is "twenty-two million, seven hundred eighty-two thousand, four hundred seventy-three".