37994317 has 2 divisors, whose sum is σ = 37994318. Its totient is φ = 37994316.

The previous prime is 37994311. The next prime is 37994351. The reversal of 37994317 is 71349973.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31573161 + 6421156 = 5619^2 + 2534^2 .

It is an emirp because it is prime and its reverse (71349973) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37994317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37994311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18997158 + 18997159.

It is an arithmetic number, because the mean of its divisors is an integer number (18997159).

Almost surely, 2^37994317 is an apocalyptic number.

It is an amenable number.

37994317 is a deficient number, since it is larger than the sum of its proper divisors (1).

37994317 is an equidigital number, since it uses as much as digits as its factorization.

37994317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 142884, while the sum is 43.

The square root of 37994317 is about 6163.9530335654. The cubic root of 37994317 is about 336.1807801020.

The spelling of 37994317 in words is "thirty-seven million, nine hundred ninety-four thousand, three hundred seventeen".