85534438 has 16 divisors (see below), whose sum is σ = 140507136. Its totient is φ = 38728840.

The previous prime is 85534391. The next prime is 85534441. The reversal of 85534438 is 83443558.

It is a super-2 number, since 2×85534438² = 14632280167951688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85534438.

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, 1606 + ... + 13177.

It is an arithmetic number, because the mean of its divisors is an integer number (8781696).

Almost surely, 2^85534438 is an apocalyptic number.

85534438 is a deficient number, since it is larger than the sum of its proper divisors (54972698).

85534438 is a wasteful number, since it uses less digits than its factorization.

85534438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15059.

The product of its digits is 230400, while the sum is 40.

The square root of 85534438 is about 9248.4830107429. The cubic root of 85534438 is about 440.6025456961.

The spelling of 85534438 in words is "eighty-five million, five hundred thirty-four thousand, four hundred thirty-eight".