38508985 has 4 divisors (see below), whose sum is σ = 46210788. Its totient is φ = 30807184.

The previous prime is 38508983. The next prime is 38508989. The reversal of 38508985 is 58980583.

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 18249984 + 20259001 = 4272^2 + 4501^2 .

It is a cyclic number.

It is not a de Polignac number, because 38508985 - 2¹ = 38508983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38508983) 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, 3850894 + ... + 3850903.

It is an arithmetic number, because the mean of its divisors is an integer number (11552697).

Almost surely, 2^38508985 is an apocalyptic number.

It is an amenable number.

38508985 is a deficient number, since it is larger than the sum of its proper divisors (7701803).

38508985 is an equidigital number, since it uses as much as digits as its factorization.

38508985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7701802.

The product of its (nonzero) digits is 345600, while the sum is 46.

The square root of 38508985 is about 6205.5608126905. The cubic root of 38508985 is about 337.6919365496.

It can be divided in two parts, 38508 and 985, that added together give a palindrome (39493).

The spelling of 38508985 in words is "thirty-eight million, five hundred eight thousand, nine hundred eighty-five".