35821901 has 2 divisors, whose sum is σ = 35821902. Its totient is φ = 35821900.

The previous prime is 35821871. The next prime is 35821939. The reversal of 35821901 is 10912853.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35688676 + 133225 = 5974^2 + 365^2 .

It is a cyclic number.

It is not a de Polignac number, because 35821901 - 2⁶ = 35821837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35821991) 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, 17910950 + 17910951.

It is an arithmetic number, because the mean of its divisors is an integer number (17910951).

Almost surely, 2^35821901 is an apocalyptic number.

It is an amenable number.

35821901 is a deficient number, since it is larger than the sum of its proper divisors (1).

35821901 is an equidigital number, since it uses as much as digits as its factorization.

35821901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 35821901 is about 5985.1400150707. The cubic root of 35821901 is about 329.6473152777.

The spelling of 35821901 in words is "thirty-five million, eight hundred twenty-one thousand, nine hundred one".