22820859 has 12 divisors (see below), whose sum is σ = 34184696. Its totient is φ = 15213744.

The previous prime is 22820857. The next prime is 22820873. The reversal of 22820859 is 95802822.

It is not a de Polignac number, because 22820859 - 2¹ = 22820857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22820857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46714 + ... + 47199.

Almost surely, 2^22820859 is an apocalyptic number.

22820859 is a deficient number, since it is larger than the sum of its proper divisors (11363837).

22820859 is an frugal number, since it uses more digits than its factorization.

22820859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93928 (or 93916 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 22820859 is about 4777.1182736039. The cubic root of 22820859 is about 283.6464348058.

The spelling of 22820859 in words is "twenty-two million, eight hundred twenty thousand, eight hundred fifty-nine".