36857945 has 4 divisors (see below), whose sum is σ = 44229540. Its totient is φ = 29486352.

The previous prime is 36857939. The next prime is 36857959. The reversal of 36857945 is 54975863.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11587216 + 25270729 = 3404^2 + 5027^2 .

It is a cyclic number.

It is not a de Polignac number, because 36857945 - 2⁶ = 36857881 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 36857945.

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 3 ways as a sum of consecutive naturals, for example, 3685790 + ... + 3685799.

It is an arithmetic number, because the mean of its divisors is an integer number (11057385).

Almost surely, 2^36857945 is an apocalyptic number.

It is an amenable number.

36857945 is a deficient number, since it is larger than the sum of its proper divisors (7371595).

36857945 is an equidigital number, since it uses as much as digits as its factorization.

36857945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7371594.

The product of its digits is 907200, while the sum is 47.

The square root of 36857945 is about 6071.0744518578. The cubic root of 36857945 is about 332.7951888914.

The spelling of 36857945 in words is "thirty-six million, eight hundred fifty-seven thousand, nine hundred forty-five".