36820791 has 16 divisors (see below), whose sum is σ = 62342400. Its totient is φ = 21040344.

The previous prime is 36820781. The next prime is 36820799. The reversal of 36820791 is 19702863.

36820791 is a `hidden beast` number, since 368 + 207 + 91 = 666.

It is not a de Polignac number, because 36820791 - 2¹⁹ = 36296503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36820799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97221 + ... + 97598.

It is an arithmetic number, because the mean of its divisors is an integer number (3896400).

Almost surely, 2^36820791 is an apocalyptic number.

36820791 is a deficient number, since it is larger than the sum of its proper divisors (25521609).

36820791 is a wasteful number, since it uses less digits than its factorization.

36820791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194835 (or 194829 counting only the distinct ones).

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

The square root of 36820791 is about 6068.0137606963. The cubic root of 36820791 is about 332.6833285274.

The spelling of 36820791 in words is "thirty-six million, eight hundred twenty thousand, seven hundred ninety-one".