85128462 has 32 divisors (see below), whose sum is σ = 190252800. Its totient is φ = 28214424.

The previous prime is 85128431. The next prime is 85128467. The reversal of 85128462 is 26482158.

85128462 is a `hidden beast` number, since 8 + 512 + 84 + 62 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85128467) by changing a digit.

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, 5263 + ... + 14069.

It is an arithmetic number, because the mean of its divisors is an integer number (5945400).

Almost surely, 2^85128462 is an apocalyptic number.

85128462 is an abundant number, since it is smaller than the sum of its proper divisors (105124338).

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

85128462 is a wasteful number, since it uses less digits than its factorization.

85128462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8997 (or 8991 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 85128462 is about 9226.5086571249. The cubic root of 85128462 is about 439.9043559328.

The spelling of 85128462 in words is "eighty-five million, one hundred twenty-eight thousand, four hundred sixty-two".