85401838 has 16 divisors (see below), whose sum is σ = 132612480. Its totient is φ = 41205600.

The previous prime is 85401821. The next prime is 85401857. The reversal of 85401838 is 83810458.

It is a junction number, because it is equal to n+sod(n) for n = 85401797 and 85401806.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 22348 + ... + 25888.

It is an arithmetic number, because the mean of its divisors is an integer number (8288280).

Almost surely, 2^85401838 is an apocalyptic number.

85401838 is a deficient number, since it is larger than the sum of its proper divisors (47210642).

85401838 is a wasteful number, since it uses less digits than its factorization.

85401838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3963.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 85401838 is about 9241.3114870131. The cubic root of 85401838 is about 440.3747461666.

The spelling of 85401838 in words is "eighty-five million, four hundred one thousand, eight hundred thirty-eight".