36820091 has 32 divisors (see below), whose sum is σ = 47900160. Its totient is φ = 27475200.

The previous prime is 36820087. The next prime is 36820093. The reversal of 36820091 is 19002863.

It is a cyclic number.

It is not a de Polignac number, because 36820091 - 2² = 36820087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36820093) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 337745 + ... + 337853.

It is an arithmetic number, because the mean of its divisors is an integer number (1496880).

Almost surely, 2^36820091 is an apocalyptic number.

36820091 is a deficient number, since it is larger than the sum of its proper divisors (11080069).

36820091 is a wasteful number, since it uses less digits than its factorization.

36820091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 36820091 is about 6067.9560809221. The cubic root of 36820091 is about 332.6812202999.

The spelling of 36820091 in words is "thirty-six million, eight hundred twenty thousand, ninety-one".