36997843 has 2 divisors, whose sum is σ = 36997844. Its totient is φ = 36997842.

The previous prime is 36997841. The next prime is 36997847. The reversal of 36997843 is 34879963.

It is a weak prime.

It is an emirp because it is prime and its reverse (34879963) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36997843 - 2¹ = 36997841 is a prime.

Together with 36997841, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (36997841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18498921 + 18498922.

It is an arithmetic number, because the mean of its divisors is an integer number (18498922).

Almost surely, 2^36997843 is an apocalyptic number.

36997843 is a deficient number, since it is larger than the sum of its proper divisors (1).

36997843 is an equidigital number, since it uses as much as digits as its factorization.

36997843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 49.

The square root of 36997843 is about 6082.5852234062. The cubic root of 36997843 is about 333.2157097212.

The spelling of 36997843 in words is "thirty-six million, nine hundred ninety-seven thousand, eight hundred forty-three".