85331436 has 48 divisors (see below), whose sum is σ = 207153408. Its totient is φ = 27316800.

The previous prime is 85331423. The next prime is 85331443. The reversal of 85331436 is 63413358.

It is a junction number, because it is equal to n+sod(n) for n = 85331397 and 85331406.

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 15 ways as a sum of consecutive naturals, for example, 30121 + ... + 32831.

It is an arithmetic number, because the mean of its divisors is an integer number (4315696).

Almost surely, 2^85331436 is an apocalyptic number.

85331436 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is an amenable number.

85331436 is an abundant number, since it is smaller than the sum of its proper divisors (121821972).

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

85331436 is a wasteful number, since it uses less digits than its factorization.

85331436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2822 (or 2820 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 85331436 is about 9237.5016102840. The cubic root of 85331436 is about 440.2537035489.

The spelling of 85331436 in words is "eighty-five million, three hundred thirty-one thousand, four hundred thirty-six".