37981093 has 4 divisors (see below), whose sum is σ = 38072160. Its totient is φ = 37890028.

The previous prime is 37981087. The next prime is 37981103. The reversal of 37981093 is 39018973.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 37981093 - 2⁵ = 37981061 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37981003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44905 + ... + 45742.

It is an arithmetic number, because the mean of its divisors is an integer number (9518040).

Almost surely, 2^37981093 is an apocalyptic number.

It is an amenable number.

37981093 is a deficient number, since it is larger than the sum of its proper divisors (91067).

37981093 is an equidigital number, since it uses as much as digits as its factorization.

37981093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91066.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 37981093 is about 6162.8802519601. The cubic root of 37981093 is about 336.1417727727.

The spelling of 37981093 in words is "thirty-seven million, nine hundred eighty-one thousand, ninety-three".