37686241 has 2 divisors, whose sum is σ = 37686242. Its totient is φ = 37686240.

The previous prime is 37686221. The next prime is 37686277. The reversal of 37686241 is 14268673.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30206016 + 7480225 = 5496^2 + 2735^2 .

It is an emirp because it is prime and its reverse (14268673) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 37686241 - 2⁷ = 37686113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 37686241.

It is not a weakly prime, because it can be changed into another prime (37686221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18843120 + 18843121.

It is an arithmetic number, because the mean of its divisors is an integer number (18843121).

Almost surely, 2^37686241 is an apocalyptic number.

It is an amenable number.

37686241 is a deficient number, since it is larger than the sum of its proper divisors (1).

37686241 is an equidigital number, since it uses as much as digits as its factorization.

37686241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 37.

The square root of 37686241 is about 6138.9120371610. The cubic root of 37686241 is about 335.2696751825.

The spelling of 37686241 in words is "thirty-seven million, six hundred eighty-six thousand, two hundred forty-one".