22727798 has 4 divisors (see below), whose sum is σ = 34091700. Its totient is φ = 11363898.

The previous prime is 22727797. The next prime is 22727813. The reversal of 22727798 is 89772722.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22727797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5681948 + ... + 5681951.

It is an arithmetic number, because the mean of its divisors is an integer number (8522925).

Almost surely, 2^22727798 is an apocalyptic number.

22727798 is a deficient number, since it is larger than the sum of its proper divisors (11363902).

22727798 is a wasteful number, since it uses less digits than its factorization.

22727798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11363901.

The product of its digits is 197568, while the sum is 44.

The square root of 22727798 is about 4767.3680369781. The cubic root of 22727798 is about 283.2603496755.

The spelling of 22727798 in words is "twenty-two million, seven hundred twenty-seven thousand, seven hundred ninety-eight".