22857073 has 4 divisors (see below), whose sum is σ = 22868388. Its totient is φ = 22845760.

The previous prime is 22857059. The next prime is 22857089. The reversal of 22857073 is 37075822.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 11242609 + 11614464 = 3353^2 + 3408^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22857073 is a prime.

It is a super-2 number, since 2×22857073² = 1044891572254658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22857053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1708 + ... + 6973.

It is an arithmetic number, because the mean of its divisors is an integer number (5717097).

Almost surely, 2^22857073 is an apocalyptic number.

It is an amenable number.

22857073 is a deficient number, since it is larger than the sum of its proper divisors (11315).

22857073 is an equidigital number, since it uses as much as digits as its factorization.

22857073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11314.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 22857073 is about 4780.9071314971. The cubic root of 22857073 is about 283.7963932759.

The spelling of 22857073 in words is "twenty-two million, eight hundred fifty-seven thousand, seventy-three".