5085391 has 4 divisors (see below), whose sum is σ = 5222872. Its totient is φ = 4947912.

The previous prime is 5085383. The next prime is 5085401. The reversal of 5085391 is 1935805.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1935805 = 5 ⋅387161.

It is a cyclic number.

It is not a de Polignac number, because 5085391 - 2³ = 5085383 is a prime.

It is a super-2 number, since 2×5085391² = 51722403245762, which contains 22 as substring.

It is a Duffinian number.

5085391 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5085361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68685 + ... + 68758.

It is an arithmetic number, because the mean of its divisors is an integer number (1305718).

Almost surely, 2^5085391 is an apocalyptic number.

5085391 is a deficient number, since it is larger than the sum of its proper divisors (137481).

5085391 is a wasteful number, since it uses less digits than its factorization.

5085391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137480.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 5085391 is about 2255.0811515331. The cubic root of 5085391 is about 171.9655488058.

It can be divided in two parts, 5085 and 391, that added together give a square (5476 = 74²).

The spelling of 5085391 in words is "five million, eighty-five thousand, three hundred ninety-one".