36844981 has 2 divisors, whose sum is σ = 36844982. Its totient is φ = 36844980.

The previous prime is 36844963. The next prime is 36844987. The reversal of 36844981 is 18944863.

36844981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36844900 + 81 = 6070^2 + 9^2 .

It is a cyclic number.

It is not a de Polignac number, because 36844981 - 2⁵ = 36844949 is a prime.

It is a super-2 number, since 2×36844981² = 2715105249780722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36844987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18422490 + 18422491.

It is an arithmetic number, because the mean of its divisors is an integer number (18422491).

Almost surely, 2^36844981 is an apocalyptic number.

It is an amenable number.

36844981 is a deficient number, since it is larger than the sum of its proper divisors (1).

36844981 is an equidigital number, since it uses as much as digits as its factorization.

36844981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 43.

The square root of 36844981 is about 6070.0066721545. The cubic root of 36844981 is about 332.7561664341.

It can be divided in two parts, 368449 and 81, that multiplied together give a square (29844369 = 5463²).

The spelling of 36844981 in words is "thirty-six million, eight hundred forty-four thousand, nine hundred eighty-one".