37889361 has 6 divisors (see below), whose sum is σ = 54729090. Its totient is φ = 25259568.

The previous prime is 37889333. The next prime is 37889389. The reversal of 37889361 is 16398873.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (37889333) and next prime (37889389).

It can be written as a sum of positive squares in only one way, i.e., 37748736 + 140625 = 6144^2 + 375^2 .

It is not a de Polignac number, because 37889361 - 2⁷ = 37889233 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (37889861) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2104956 + ... + 2104973.

It is an arithmetic number, because the mean of its divisors is an integer number (9121515).

Almost surely, 2^37889361 is an apocalyptic number.

It is an amenable number.

37889361 is a deficient number, since it is larger than the sum of its proper divisors (16839729).

37889361 is a wasteful number, since it uses less digits than its factorization.

37889361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4209935 (or 4209932 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 37889361 is about 6155.4334534621. The cubic root of 37889361 is about 335.8709378893.

The spelling of 37889361 in words is "thirty-seven million, eight hundred eighty-nine thousand, three hundred sixty-one".