38312665 has 8 divisors (see below), whose sum is σ = 46623168. Its totient is φ = 30218160.

The previous prime is 38312657. The next prime is 38312669. The reversal of 38312665 is 56621383.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38312665 - 2³ = 38312657 is a prime.

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 38312665.

It is not an unprimeable number, because it can be changed into a prime (38312669) 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, 53607 + ... + 54316.

It is an arithmetic number, because the mean of its divisors is an integer number (5827896).

Almost surely, 2^38312665 is an apocalyptic number.

It is an amenable number.

38312665 is a deficient number, since it is larger than the sum of its proper divisors (8310503).

38312665 is a wasteful number, since it uses less digits than its factorization.

38312665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107999.

The product of its digits is 25920, while the sum is 34.

The square root of 38312665 is about 6189.7225301301. The cubic root of 38312665 is about 337.1171039462.

The spelling of 38312665 in words is "thirty-eight million, three hundred twelve thousand, six hundred sixty-five".