37993093 has 2 divisors, whose sum is σ = 37993094. Its totient is φ = 37993092.

The previous prime is 37993091. The next prime is 37993097. The reversal of 37993093 is 39039973.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21687649 + 16305444 = 4657^2 + 4038^2 .

It is a cyclic number.

It is not a de Polignac number, because 37993093 - 2¹ = 37993091 is a prime.

Together with 37993091, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37993091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18996546 + 18996547.

It is an arithmetic number, because the mean of its divisors is an integer number (18996547).

Almost surely, 2^37993093 is an apocalyptic number.

It is an amenable number.

37993093 is a deficient number, since it is larger than the sum of its proper divisors (1).

37993093 is an equidigital number, since it uses as much as digits as its factorization.

37993093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 137781, while the sum is 43.

The square root of 37993093 is about 6163.8537458314. The cubic root of 37993093 is about 336.1771700034.

The spelling of 37993093 in words is "thirty-seven million, nine hundred ninety-three thousand, ninety-three".