35646421 has 2 divisors, whose sum is σ = 35646422. Its totient is φ = 35646420.

The previous prime is 35646371. The next prime is 35646427. The reversal of 35646421 is 12464653.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27973521 + 7672900 = 5289^2 + 2770^2 .

It is a cyclic number.

It is not a de Polignac number, because 35646421 - 2¹¹ = 35644373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35646427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17823210 + 17823211.

It is an arithmetic number, because the mean of its divisors is an integer number (17823211).

Almost surely, 2^35646421 is an apocalyptic number.

It is an amenable number.

35646421 is a deficient number, since it is larger than the sum of its proper divisors (1).

35646421 is an equidigital number, since it uses as much as digits as its factorization.

35646421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 31.

The square root of 35646421 is about 5970.4623774043. The cubic root of 35646421 is about 329.1081551146.

The spelling of 35646421 in words is "thirty-five million, six hundred forty-six thousand, four hundred twenty-one".