22691716 has 6 divisors (see below), whose sum is σ = 39710510. Its totient is φ = 11345856.

The previous prime is 22691701. The next prime is 22691743. The reversal of 22691716 is 61719622.

It can be written as a sum of positive squares in only one way, i.e., 19096900 + 3594816 = 4370^2 + 1896^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2836461 + ... + 2836468.

Almost surely, 2^22691716 is an apocalyptic number.

It is an amenable number.

22691716 is a deficient number, since it is larger than the sum of its proper divisors (17018794).

22691716 is a wasteful number, since it uses less digits than its factorization.

22691716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5672933 (or 5672931 counting only the distinct ones).

The product of its digits is 9072, while the sum is 34.

The square root of 22691716 is about 4763.5822654805. The cubic root of 22691716 is about 283.1103716125.

The spelling of 22691716 in words is "twenty-two million, six hundred ninety-one thousand, seven hundred sixteen".