35622721 has 2 divisors, whose sum is σ = 35622722. Its totient is φ = 35622720.

The previous prime is 35622709. The next prime is 35622733. The reversal of 35622721 is 12722653.

35622721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (35622709) and next prime (35622733).

It can be written as a sum of positive squares in only one way, i.e., 33189121 + 2433600 = 5761^2 + 1560^2 .

It is an emirp because it is prime and its reverse (12722653) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 35622721 - 2⁷ = 35622593 is a prime.

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 35622721.

It is not a weakly prime, because it can be changed into another prime (35622221) by changing a digit.

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, 17811360 + 17811361.

It is an arithmetic number, because the mean of its divisors is an integer number (17811361).

Almost surely, 2^35622721 is an apocalyptic number.

It is an amenable number.

35622721 is a deficient number, since it is larger than the sum of its proper divisors (1).

35622721 is an equidigital number, since it uses as much as digits as its factorization.

35622721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 28.

The square root of 35622721 is about 5968.4772764919. The cubic root of 35622721 is about 329.0352016239.

The spelling of 35622721 in words is "thirty-five million, six hundred twenty-two thousand, seven hundred twenty-one".