38637361 has 16 divisors (see below), whose sum is σ = 45612160. Its totient is φ = 32037120.

The previous prime is 38637353. The next prime is 38637383. The reversal of 38637361 is 16373683.

38637361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a 3-Lehmer number, since φ(38637361) divides (38637361-1)³.

It is a cyclic number.

It is a Carmichael number.

It is not a de Polignac number, because 38637361 - 2³ = 38637353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a deceptive number, since it divides R_38637360.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38637361.

It is not an unprimeable number, because it can be changed into a prime (38637341) 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 15 ways as a sum of consecutive naturals, for example, 62110 + ... + 62728.

It is an arithmetic number, because the mean of its divisors is an integer number (2850760).

It is a Poulet number, since it divides 2^38637360-1.

Almost surely, 2^38637361 is an apocalyptic number.

It is an amenable number.

38637361 is a deficient number, since it is larger than the sum of its proper divisors (6974799).

38637361 is a wasteful number, since it uses less digits than its factorization.

38637361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904.

The product of its digits is 54432, while the sum is 37.

The square root of 38637361 is about 6215.8958324605. The cubic root of 38637361 is about 338.0667707683.

The spelling of 38637361 in words is "thirty-eight million, six hundred thirty-seven thousand, three hundred sixty-one".