35623661 has 2 divisors, whose sum is σ = 35623662. Its totient is φ = 35623660.

The previous prime is 35623657. The next prime is 35623673. The reversal of 35623661 is 16632653.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35581225 + 42436 = 5965^2 + 206^2 .

It is an emirp because it is prime and its reverse (16632653) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 35623661 - 2² = 35623657 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35623631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17811830 + 17811831.

It is an arithmetic number, because the mean of its divisors is an integer number (17811831).

Almost surely, 2^35623661 is an apocalyptic number.

It is an amenable number.

35623661 is a deficient number, since it is larger than the sum of its proper divisors (1).

35623661 is an equidigital number, since it uses as much as digits as its factorization.

35623661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 32.

The square root of 35623661 is about 5968.5560230260. The cubic root of 35623661 is about 329.0380957540.

The spelling of 35623661 in words is "thirty-five million, six hundred twenty-three thousand, six hundred sixty-one".