35666641 has 2 divisors, whose sum is σ = 35666642. Its totient is φ = 35666640.

The previous prime is 35666623. The next prime is 35666669. The reversal of 35666641 is 14666653.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35058241 + 608400 = 5921^2 + 780^2 .

It is an emirp because it is prime and its reverse (14666653) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 35666641 - 2⁷ = 35666513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 35666641.

It is not a weakly prime, because it can be changed into another prime (35666671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17833320 + 17833321.

It is an arithmetic number, because the mean of its divisors is an integer number (17833321).

Almost surely, 2^35666641 is an apocalyptic number.

It is an amenable number.

35666641 is a deficient number, since it is larger than the sum of its proper divisors (1).

35666641 is an equidigital number, since it uses as much as digits as its factorization.

35666641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 37.

The square root of 35666641 is about 5972.1554735288. The cubic root of 35666641 is about 329.1703708889.

The spelling of 35666641 in words is "thirty-five million, six hundred sixty-six thousand, six hundred forty-one".