35661641 has 2 divisors, whose sum is σ = 35661642. Its totient is φ = 35661640.

The previous prime is 35661623. The next prime is 35661643. The reversal of 35661641 is 14616653.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30913600 + 4748041 = 5560^2 + 2179^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-35661641 is a prime.

Together with 35661643, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 35661598 and 35661607.

It is not a weakly prime, because it can be changed into another prime (35661643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17830820 + 17830821.

It is an arithmetic number, because the mean of its divisors is an integer number (17830821).

Almost surely, 2^35661641 is an apocalyptic number.

It is an amenable number.

35661641 is a deficient number, since it is larger than the sum of its proper divisors (1).

35661641 is an equidigital number, since it uses as much as digits as its factorization.

35661641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 35661641 is about 5971.7368495271. The cubic root of 35661641 is about 329.1549883660.

The spelling of 35661641 in words is "thirty-five million, six hundred sixty-one thousand, six hundred forty-one".