36847997 has 2 divisors, whose sum is σ = 36847998. Its totient is φ = 36847996.

The previous prime is 36847981. The next prime is 36848017. The reversal of 36847997 is 79974863.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35295481 + 1552516 = 5941^2 + 1246^2 .

It is an emirp because it is prime and its reverse (79974863) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36847997 - 2⁴ = 36847981 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36847957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18423998 + 18423999.

It is an arithmetic number, because the mean of its divisors is an integer number (18423999).

Almost surely, 2^36847997 is an apocalyptic number.

It is an amenable number.

36847997 is a deficient number, since it is larger than the sum of its proper divisors (1).

36847997 is an equidigital number, since it uses as much as digits as its factorization.

36847997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2286144, while the sum is 53.

The square root of 36847997 is about 6070.2551017235. The cubic root of 36847997 is about 332.7652456012.

The spelling of 36847997 in words is "thirty-six million, eight hundred forty-seven thousand, nine hundred ninety-seven".