37318493 has 2 divisors, whose sum is σ = 37318494. Its totient is φ = 37318492.

The previous prime is 37318483. The next prime is 37318507. The reversal of 37318493 is 39481373.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34421689 + 2896804 = 5867^2 + 1702^2 .

It is a cyclic number.

It is not a de Polignac number, because 37318493 - 2¹² = 37314397 is a prime.

It is a Chen prime.

It is equal to p_2279927 and since 37318493 and 2279927 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37318433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18659246 + 18659247.

It is an arithmetic number, because the mean of its divisors is an integer number (18659247).

Almost surely, 2^37318493 is an apocalyptic number.

It is an amenable number.

37318493 is a deficient number, since it is larger than the sum of its proper divisors (1).

37318493 is an equidigital number, since it uses as much as digits as its factorization.

37318493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 38.

The square root of 37318493 is about 6108.8863960627. The cubic root of 37318493 is about 334.1755713353.

The spelling of 37318493 in words is "thirty-seven million, three hundred eighteen thousand, four hundred ninety-three".