85394638 has 24 divisors (see below), whose sum is σ = 155261232. Its totient is φ = 34387392.

The previous prime is 85394627. The next prime is 85394641. The reversal of 85394638 is 83649358.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142263 + ... + 142861.

It is an arithmetic number, because the mean of its divisors is an integer number (6469218).

Almost surely, 2^85394638 is an apocalyptic number.

85394638 is a deficient number, since it is larger than the sum of its proper divisors (69866594).

85394638 is an equidigital number, since it uses as much as digits as its factorization.

85394638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224 (or 625 counting only the distinct ones).

The product of its digits is 622080, while the sum is 46.

The square root of 85394638 is about 9240.9219237044. The cubic root of 85394638 is about 440.3623702141.

The spelling of 85394638 in words is "eighty-five million, three hundred ninety-four thousand, six hundred thirty-eight".