85458216 has 16 divisors (see below), whose sum is σ = 213645600. Its totient is φ = 28486064.

The previous prime is 85458203. The next prime is 85458229. The reversal of 85458216 is 61285458.

It is an interprime number because it is at equal distance from previous prime (85458203) and next prime (85458229).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1780356 + ... + 1780403.

It is an arithmetic number, because the mean of its divisors is an integer number (13352850).

Almost surely, 2^85458216 is an apocalyptic number.

It is an amenable number.

85458216 is an abundant number, since it is smaller than the sum of its proper divisors (128187384).

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

85458216 is a wasteful number, since it uses less digits than its factorization.

85458216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3560768 (or 3560764 counting only the distinct ones).

The product of its digits is 76800, while the sum is 39.

The square root of 85458216 is about 9244.3613083869. The cubic root of 85458216 is about 440.4716292734.

It can be divided in two parts, 8545 and 8216, that added together give a palindrome (16761).

The spelling of 85458216 in words is "eighty-five million, four hundred fifty-eight thousand, two hundred sixteen".