36691043 has 2 divisors, whose sum is σ = 36691044. Its totient is φ = 36691042.

The previous prime is 36691027. The next prime is 36691079. The reversal of 36691043 is 34019663.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36691043 - 2⁴ = 36691027 is a prime.

It is equal to p_2243966 and since 36691043 and 2243966 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (36691093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18345521 + 18345522.

It is an arithmetic number, because the mean of its divisors is an integer number (18345522).

Almost surely, 2^36691043 is an apocalyptic number.

36691043 is a deficient number, since it is larger than the sum of its proper divisors (1).

36691043 is an equidigital number, since it uses as much as digits as its factorization.

36691043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 36691043 is about 6057.3131832521. The cubic root of 36691043 is about 332.2921021215.

The spelling of 36691043 in words is "thirty-six million, six hundred ninety-one thousand, forty-three".