37875981 has 16 divisors (see below), whose sum is σ = 59330880. Its totient is φ = 21189120.

The previous prime is 37875953. The next prime is 37876039. The reversal of 37875981 is 18957873.

It is not a de Polignac number, because 37875981 - 2⁷ = 37875853 is a prime.

It is a super-2 number, since 2×37875981² = 2869179873424722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 37875981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37875931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43716 + ... + 44573.

It is an arithmetic number, because the mean of its divisors is an integer number (3708180).

Almost surely, 2^37875981 is an apocalyptic number.

It is an amenable number.

37875981 is a deficient number, since it is larger than the sum of its proper divisors (21454899).

37875981 is a wasteful number, since it uses less digits than its factorization.

37875981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88316.

The product of its digits is 423360, while the sum is 48.

The square root of 37875981 is about 6154.3465128314. The cubic root of 37875981 is about 335.8313974825.

The spelling of 37875981 in words is "thirty-seven million, eight hundred seventy-five thousand, nine hundred eighty-one".