36981671 has 2 divisors, whose sum is σ = 36981672. Its totient is φ = 36981670.

The previous prime is 36981653. The next prime is 36981673. The reversal of 36981671 is 17618963.

36981671 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 is an emirp because it is prime and its reverse (17618963) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36981671 is a prime.

Together with 36981673, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36981673) 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, 18490835 + 18490836.

It is an arithmetic number, because the mean of its divisors is an integer number (18490836).

Almost surely, 2^36981671 is an apocalyptic number.

36981671 is a deficient number, since it is larger than the sum of its proper divisors (1).

36981671 is an equidigital number, since it uses as much as digits as its factorization.

36981671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 41.

The square root of 36981671 is about 6081.2557091443. The cubic root of 36981671 is about 333.1671523877.

The spelling of 36981671 in words is "thirty-six million, nine hundred eighty-one thousand, six hundred seventy-one".