35946821 has 2 divisors, whose sum is σ = 35946822. Its totient is φ = 35946820.

The previous prime is 35946811. The next prime is 35946851. The reversal of 35946821 is 12864953.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25897921 + 10048900 = 5089^2 + 3170^2 .

It is a cyclic number.

It is not a de Polignac number, because 35946821 - 2¹⁴ = 35930437 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35946811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17973410 + 17973411.

It is an arithmetic number, because the mean of its divisors is an integer number (17973411).

Almost surely, 2^35946821 is an apocalyptic number.

It is an amenable number.

35946821 is a deficient number, since it is larger than the sum of its proper divisors (1).

35946821 is an equidigital number, since it uses as much as digits as its factorization.

35946821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 38.

The square root of 35946821 is about 5995.5667788792. The cubic root of 35946821 is about 330.0300584802.

The spelling of 35946821 in words is "thirty-five million, nine hundred forty-six thousand, eight hundred twenty-one".