38086985 has 4 divisors (see below), whose sum is σ = 45704388. Its totient is φ = 30469584.

The previous prime is 38086981. The next prime is 38087009. The reversal of 38086985 is 58968083.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6130576 + 31956409 = 2476^2 + 5653^2 .

It is a cyclic number.

It is not a de Polignac number, because 38086985 - 2² = 38086981 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38086981) 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, 3808694 + ... + 3808703.

It is an arithmetic number, because the mean of its divisors is an integer number (11426097).

Almost surely, 2^38086985 is an apocalyptic number.

It is an amenable number.

38086985 is a deficient number, since it is larger than the sum of its proper divisors (7617403).

38086985 is an equidigital number, since it uses as much as digits as its factorization.

38086985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7617402.

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 38086985 is about 6171.4653851415. The cubic root of 38086985 is about 336.4538727620.

The spelling of 38086985 in words is "thirty-eight million, eighty-six thousand, nine hundred eighty-five".