36673381 has 2 divisors, whose sum is σ = 36673382. Its totient is φ = 36673380.

The previous prime is 36673379. The next prime is 36673421. The reversal of 36673381 is 18337663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36360900 + 312481 = 6030^2 + 559^2 .

It is a cyclic number.

It is not a de Polignac number, because 36673381 - 2¹ = 36673379 is a prime.

It is a super-2 number, since 2×36673381² = 2689873747942322, which contains 22 as substring.

Together with 36673379, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 36673381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36673331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18336690 + 18336691.

It is an arithmetic number, because the mean of its divisors is an integer number (18336691).

Almost surely, 2^36673381 is an apocalyptic number.

It is an amenable number.

36673381 is a deficient number, since it is larger than the sum of its proper divisors (1).

36673381 is an equidigital number, since it uses as much as digits as its factorization.

36673381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 37.

The square root of 36673381 is about 6055.8551006443. The cubic root of 36673381 is about 332.2387749823.

The spelling of 36673381 in words is "thirty-six million, six hundred seventy-three thousand, three hundred eighty-one".