85244441 has 4 divisors (see below), whose sum is σ = 85548084. Its totient is φ = 84940800.

The previous prime is 85244437. The next prime is 85244459. The reversal of 85244441 is 14444258.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14444258 = 2 ⋅7222129.

It can be written as a sum of positive squares in 2 ways, for example, as 46854025 + 38390416 = 6845^2 + 6196^2 .

It is a cyclic number.

It is not a de Polignac number, because 85244441 - 2² = 85244437 is a prime.

It is a super-2 number, since 2×85244441² = 14533229442804962, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85244398 and 85244407.

It is not an unprimeable number, because it can be changed into a prime (85244491) 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, 151400 + ... + 151961.

It is an arithmetic number, because the mean of its divisors is an integer number (21387021).

Almost surely, 2^85244441 is an apocalyptic number.

It is an amenable number.

85244441 is a deficient number, since it is larger than the sum of its proper divisors (303643).

85244441 is a wasteful number, since it uses less digits than its factorization.

85244441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303642.

The product of its digits is 20480, while the sum is 32.

The square root of 85244441 is about 9232.7916146743. The cubic root of 85244441 is about 440.1040404797.

Adding to 85244441 its reverse (14444258), we get a palindrome (99688699).

The spelling of 85244441 in words is "eighty-five million, two hundred forty-four thousand, four hundred forty-one".