22997306 has 4 divisors (see below), whose sum is σ = 34495962. Its totient is φ = 11498652.

The previous prime is 22997279. The next prime is 22997323. The reversal of 22997306 is 60379922.

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

It can be written as a sum of positive squares in only one way, i.e., 15484225 + 7513081 = 3935^2 + 2741^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22997306.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5749325 + ... + 5749328.

Almost surely, 2^22997306 is an apocalyptic number.

22997306 is a deficient number, since it is larger than the sum of its proper divisors (11498656).

22997306 is a wasteful number, since it uses less digits than its factorization.

22997306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11498655.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 22997306 is about 4795.5506461719. The cubic root of 22997306 is about 284.3755941058.

The spelling of 22997306 in words is "twenty-two million, nine hundred ninety-seven thousand, three hundred six".