85380538 has 8 divisors (see below), whose sum is σ = 128111220. Its totient is φ = 42676800.

The previous prime is 85380487. The next prime is 85380539. The reversal of 85380538 is 83508358.

It can be written as a sum of positive squares in 2 ways, for example, as 79441569 + 5938969 = 8913^2 + 2437^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 85380538.

It is not an unprimeable number, because it can be changed into a prime (85380539) 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, 6018 + ... + 14386.

Almost surely, 2^85380538 is an apocalyptic number.

85380538 is a deficient number, since it is larger than the sum of its proper divisors (42730682).

85380538 is a wasteful number, since it uses less digits than its factorization.

85380538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13472.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 85380538 is about 9240.1589813163. The cubic root of 85380538 is about 440.3381319585.

The spelling of 85380538 in words is "eighty-five million, three hundred eighty thousand, five hundred thirty-eight".