22773861 has 24 divisors (see below), whose sum is σ = 36036000. Its totient is φ = 13744800.

The previous prime is 22773853. The next prime is 22773911. The reversal of 22773861 is 16837722.

22773861 is a `hidden beast` number, since 2 + 277 + 386 + 1 = 666.

It is not a de Polignac number, because 22773861 - 2³ = 22773853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22773811) 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 23 ways as a sum of consecutive naturals, for example, 45390 + ... + 45888.

It is an arithmetic number, because the mean of its divisors is an integer number (1501500).

Almost surely, 2^22773861 is an apocalyptic number.

It is an amenable number.

22773861 is a deficient number, since it is larger than the sum of its proper divisors (13262139).

22773861 is a wasteful number, since it uses less digits than its factorization.

22773861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977 (or 974 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 22773861 is about 4772.1966640112. The cubic root of 22773861 is about 283.4515841660.

It can be divided in two parts, 227 and 73861, that added together give a cube (74088 = 42³).

The spelling of 22773861 in words is "twenty-two million, seven hundred seventy-three thousand, eight hundred sixty-one".