36623869 has 2 divisors, whose sum is σ = 36623870. Its totient is φ = 36623868.

The previous prime is 36623827. The next prime is 36623893. The reversal of 36623869 is 96832663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22448644 + 14175225 = 4738^2 + 3765^2 .

It is a cyclic number.

It is not a de Polignac number, because 36623869 - 2⁹ = 36623357 is a prime.

It is a super-2 number, since 2×36623869² = 2682615561058322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36623809) 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, 18311934 + 18311935.

It is an arithmetic number, because the mean of its divisors is an integer number (18311935).

Almost surely, 2^36623869 is an apocalyptic number.

It is an amenable number.

36623869 is a deficient number, since it is larger than the sum of its proper divisors (1).

36623869 is an equidigital number, since it uses as much as digits as its factorization.

36623869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 43.

The square root of 36623869 is about 6051.7657753750. The cubic root of 36623869 is about 332.0891913316.

The spelling of 36623869 in words is "thirty-six million, six hundred twenty-three thousand, eight hundred sixty-nine".