35631961 has 2 divisors, whose sum is σ = 35631962. Its totient is φ = 35631960.

The previous prime is 35631931. The next prime is 35631971. The reversal of 35631961 is 16913653.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22382361 + 13249600 = 4731^2 + 3640^2 .

It is a cyclic number.

It is not a de Polignac number, because 35631961 - 2²³ = 27243353 is a prime.

It is not a weakly prime, because it can be changed into another prime (35631901) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17815980 + 17815981.

It is an arithmetic number, because the mean of its divisors is an integer number (17815981).

Almost surely, 2^35631961 is an apocalyptic number.

It is an amenable number.

35631961 is a deficient number, since it is larger than the sum of its proper divisors (1).

35631961 is an equidigital number, since it uses as much as digits as its factorization.

35631961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14580, while the sum is 34.

The square root of 35631961 is about 5969.2512930853. The cubic root of 35631961 is about 329.0636480980.

The spelling of 35631961 in words is "thirty-five million, six hundred thirty-one thousand, nine hundred sixty-one".