37138873 has 4 divisors (see below), whose sum is σ = 37152000. Its totient is φ = 37125748.

The previous prime is 37138867. The next prime is 37138889. The reversal of 37138873 is 37883173.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 37883173 = 239 ⋅158507.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37138873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (37138273) 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, 373 + ... + 8626.

It is an arithmetic number, because the mean of its divisors is an integer number (9288000).

Almost surely, 2^37138873 is an apocalyptic number.

It is an amenable number.

37138873 is a deficient number, since it is larger than the sum of its proper divisors (13127).

37138873 is an equidigital number, since it uses as much as digits as its factorization.

37138873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13126.

The product of its digits is 84672, while the sum is 40.

The square root of 37138873 is about 6094.1671293131. The cubic root of 37138873 is about 333.6385616439.

The spelling of 37138873 in words is "thirty-seven million, one hundred thirty-eight thousand, eight hundred seventy-three".