23020785 has 12 divisors (see below), whose sum is σ = 39902772. Its totient is φ = 12277728.

The previous prime is 23020759. The next prime is 23020787. The reversal of 23020785 is 58702032.

It can be written as a sum of positive squares in 2 ways, for example, as 14447601 + 8573184 = 3801^2 + 2928^2 .

It is not a de Polignac number, because 23020785 - 2⁹ = 23020273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23020787) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255742 + ... + 255831.

It is an arithmetic number, because the mean of its divisors is an integer number (3325231).

Almost surely, 2^23020785 is an apocalyptic number.

It is an amenable number.

23020785 is a deficient number, since it is larger than the sum of its proper divisors (16881987).

23020785 is a wasteful number, since it uses less digits than its factorization.

23020785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511584 (or 511581 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 23020785 is about 4797.9980200079. The cubic root of 23020785 is about 284.4723385335.

The spelling of 23020785 in words is "twenty-three million, twenty thousand, seven hundred eighty-five".