85446439 has 8 divisors (see below), whose sum is σ = 96862640. Its totient is φ = 74722176.

The previous prime is 85446433. The next prime is 85446443. The reversal of 85446439 is 93464458.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 85446439 - 2⁵ = 85446407 is a prime.

It is a super-3 number, since 3×85446439³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85446395 and 85446404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85446433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172722 + ... + 173215.

It is an arithmetic number, because the mean of its divisors is an integer number (12107830).

Almost surely, 2^85446439 is an apocalyptic number.

85446439 is a deficient number, since it is larger than the sum of its proper divisors (11416201).

85446439 is a wasteful number, since it uses less digits than its factorization.

85446439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345969.

The product of its digits is 414720, while the sum is 43.

The square root of 85446439 is about 9243.7243035478. The cubic root of 85446439 is about 440.4513945398.

The spelling of 85446439 in words is "eighty-five million, four hundred forty-six thousand, four hundred thirty-nine".