36043391 has 2 divisors, whose sum is σ = 36043392. Its totient is φ = 36043390.

The previous prime is 36043379. The next prime is 36043409. The reversal of 36043391 is 19334063.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36043391 - 2¹⁸ = 35781247 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36043321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18021695 + 18021696.

It is an arithmetic number, because the mean of its divisors is an integer number (18021696).

Almost surely, 2^36043391 is an apocalyptic number.

36043391 is a deficient number, since it is larger than the sum of its proper divisors (1).

36043391 is an equidigital number, since it uses as much as digits as its factorization.

36043391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 29.

The square root of 36043391 is about 6003.6148277517. The cubic root of 36043391 is about 330.3253326680.

The spelling of 36043391 in words is "thirty-six million, forty-three thousand, three hundred ninety-one".