35691641 has 2 divisors, whose sum is σ = 35691642. Its totient is φ = 35691640.

The previous prime is 35691613. The next prime is 35691673. The reversal of 35691641 is 14619653.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20286016 + 15405625 = 4504^2 + 3925^2 .

It is a cyclic number.

It is not a de Polignac number, because 35691641 - 2¹⁰ = 35690617 is a prime.

It is not a weakly prime, because it can be changed into another prime (35691611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17845820 + 17845821.

It is an arithmetic number, because the mean of its divisors is an integer number (17845821).

Almost surely, 2^35691641 is an apocalyptic number.

It is an amenable number.

35691641 is a deficient number, since it is larger than the sum of its proper divisors (1).

35691641 is an equidigital number, since it uses as much as digits as its factorization.

35691641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 35.

The square root of 35691641 is about 5974.2481535336. The cubic root of 35691641 is about 329.2472619470.

The spelling of 35691641 in words is "thirty-five million, six hundred ninety-one thousand, six hundred forty-one".