37445993 has 4 divisors (see below), whose sum is σ = 40326468. Its totient is φ = 34565520.

The previous prime is 37445983. The next prime is 37446011. The reversal of 37445993 is 39954473.

37445993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7327849 + 30118144 = 2707^2 + 5488^2 .

It is a cyclic number.

It is not a de Polignac number, because 37445993 - 2¹⁰ = 37444969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (37445953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1440218 + ... + 1440243.

It is an arithmetic number, because the mean of its divisors is an integer number (10081617).

Almost surely, 2^37445993 is an apocalyptic number.

It is an amenable number.

37445993 is a deficient number, since it is larger than the sum of its proper divisors (2880475).

37445993 is a wasteful number, since it uses less digits than its factorization.

37445993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2880474.

The product of its digits is 408240, while the sum is 44.

The square root of 37445993 is about 6119.3131150481. The cubic root of 37445993 is about 334.5557131058. Note that the first 3 decimals are identical.

The spelling of 37445993 in words is "thirty-seven million, four hundred forty-five thousand, nine hundred ninety-three".