85389270 has 32 divisors (see below), whose sum is σ = 207243360. Its totient is φ = 22513920.

The previous prime is 85389263. The next prime is 85389281. The reversal of 85389270 is 7298358.

It is a super-2 number, since 2×85389270² = 14582654862265800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13321 + ... + 18660.

It is an arithmetic number, because the mean of its divisors is an integer number (6476355).

Almost surely, 2^85389270 is an apocalyptic number.

85389270 is an abundant number, since it is smaller than the sum of its proper divisors (121854090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85389270 is a wasteful number, since it uses less digits than its factorization.

85389270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32080.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 85389270 is about 9240.6314719287. The cubic root of 85389270 is about 440.3531428013.

The spelling of 85389270 in words is "eighty-five million, three hundred eighty-nine thousand, two hundred seventy".