38661655 has 8 divisors (see below), whose sum is σ = 49123152. Its totient is φ = 29109888.

The previous prime is 38661653. The next prime is 38661659. The reversal of 38661655 is 55616683.

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 38661655 - 2¹ = 38661653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38661653) 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, 227337 + ... + 227506.

It is an arithmetic number, because the mean of its divisors is an integer number (6140394).

Almost surely, 2^38661655 is an apocalyptic number.

38661655 is a deficient number, since it is larger than the sum of its proper divisors (10461497).

38661655 is a wasteful number, since it uses less digits than its factorization.

38661655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454865.

The product of its digits is 129600, while the sum is 40.

The square root of 38661655 is about 6217.8497087016. The cubic root of 38661655 is about 338.1376112981.

The spelling of 38661655 in words is "thirty-eight million, six hundred sixty-one thousand, six hundred fifty-five".