85238481 has 4 divisors (see below), whose sum is σ = 113651312. Its totient is φ = 56825652.

The previous prime is 85238441. The next prime is 85238497. The reversal of 85238481 is 18483258.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 85238481 - 2¹⁰ = 85237457 is a prime.

It is a super-2 number, since 2×85238481² = 14531197286374722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85238441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14206411 + ... + 14206416.

It is an arithmetic number, because the mean of its divisors is an integer number (28412828).

Almost surely, 2^85238481 is an apocalyptic number.

It is an amenable number.

85238481 is a deficient number, since it is larger than the sum of its proper divisors (28412831).

85238481 is a wasteful number, since it uses less digits than its factorization.

85238481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28412830.

The product of its digits is 61440, while the sum is 39.

The square root of 85238481 is about 9232.4688464137. The cubic root of 85238481 is about 440.0937833839.

The spelling of 85238481 in words is "eighty-five million, two hundred thirty-eight thousand, four hundred eighty-one".