37481993 has 8 divisors (see below), whose sum is σ = 38102400. Its totient is φ = 36866800.

The previous prime is 37481953. The next prime is 37482001. The reversal of 37481993 is 39918473.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 37481993 - 2⁶ = 37481929 is a prime.

It is a super-3 number, since 3×37481993³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (37481903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14768 + ... + 17118.

It is an arithmetic number, because the mean of its divisors is an integer number (4762800).

Almost surely, 2^37481993 is an apocalyptic number.

It is an amenable number.

37481993 is a deficient number, since it is larger than the sum of its proper divisors (620407).

37481993 is a wasteful number, since it uses less digits than its factorization.

37481993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2607.

The product of its digits is 163296, while the sum is 44.

The square root of 37481993 is about 6122.2539150218. The cubic root of 37481993 is about 334.6628910006.

The spelling of 37481993 in words is "thirty-seven million, four hundred eighty-one thousand, nine hundred ninety-three".