35809945 has 8 divisors (see below), whose sum is σ = 43210440. Its totient is φ = 28488960.

The previous prime is 35809937. The next prime is 35809967. The reversal of 35809945 is 54990853.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 61504 + 35748441 = 248^2 + 5979^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 35809945 - 2³ = 35809937 is a prime.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 18880 + ... + 20689.

It is an arithmetic number, because the mean of its divisors is an integer number (5401305).

Almost surely, 2^35809945 is an apocalyptic number.

It is an amenable number.

35809945 is a deficient number, since it is larger than the sum of its proper divisors (7400495).

35809945 is a wasteful number, since it uses less digits than its factorization.

35809945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39755.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 35809945 is about 5984.1411246728. The cubic root of 35809945 is about 329.6106365816.

The spelling of 35809945 in words is "thirty-five million, eight hundred nine thousand, nine hundred forty-five".