36021789 has 12 divisors (see below), whose sum is σ = 52170300. Its totient is φ = 23950464.

The previous prime is 36021773. The next prime is 36021803. The reversal of 36021789 is 98712063.

36021789 is a `hidden beast` number, since 360 + 217 + 89 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21068100 + 14953689 = 4590^2 + 3867^2 .

It is not a de Polignac number, because 36021789 - 2⁴ = 36021773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36061789) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1644 + ... + 8645.

It is an arithmetic number, because the mean of its divisors is an integer number (4347525).

Almost surely, 2^36021789 is an apocalyptic number.

It is an amenable number.

36021789 is a deficient number, since it is larger than the sum of its proper divisors (16148511).

36021789 is a wasteful number, since it uses less digits than its factorization.

36021789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10684 (or 10681 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 36021789 is about 6001.8154753374. The cubic root of 36021789 is about 330.2593278364.

The spelling of 36021789 in words is "thirty-six million, twenty-one thousand, seven hundred eighty-nine".