22770851 has 4 divisors (see below), whose sum is σ = 23760912. Its totient is φ = 21780792.

The previous prime is 22770827. The next prime is 22770877. The reversal of 22770851 is 15807722.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22770851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22773851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494996 + ... + 495041.

It is an arithmetic number, because the mean of its divisors is an integer number (5940228).

Almost surely, 2^22770851 is an apocalyptic number.

22770851 is a deficient number, since it is larger than the sum of its proper divisors (990061).

22770851 is an equidigital number, since it uses as much as digits as its factorization.

22770851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990060.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 22770851 is about 4771.8812851956. The cubic root of 22770851 is about 283.4390957718.

The spelling of 22770851 in words is "twenty-two million, seven hundred seventy thousand, eight hundred fifty-one".