22691701 has 2 divisors, whose sum is σ = 22691702. Its totient is φ = 22691700.

The previous prime is 22691699. The next prime is 22691743. The reversal of 22691701 is 10719622.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19448100 + 3243601 = 4410^2 + 1801^2 .

It is a cyclic number.

It is not a de Polignac number, because 22691701 - 2¹ = 22691699 is a prime.

Together with 22691699, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22691701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22692701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11345850 + 11345851.

It is an arithmetic number, because the mean of its divisors is an integer number (11345851).

Almost surely, 2^22691701 is an apocalyptic number.

It is an amenable number.

22691701 is a deficient number, since it is larger than the sum of its proper divisors (1).

22691701 is an equidigital number, since it uses as much as digits as its factorization.

22691701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 22691701 is about 4763.5806910348. The cubic root of 22691701 is about 283.1103092306.

The spelling of 22691701 in words is "twenty-two million, six hundred ninety-one thousand, seven hundred one".