85414728 has 64 divisors (see below), whose sum is σ = 256896000. Its totient is φ = 23118912.

The previous prime is 85414717. The next prime is 85414729. The reversal of 85414728 is 82741458.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (85414729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10188 + ... + 16571.

It is an arithmetic number, because the mean of its divisors is an integer number (4014000).

Almost surely, 2^85414728 is an apocalyptic number.

It is an amenable number.

85414728 is an abundant number, since it is smaller than the sum of its proper divisors (171481272).

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

85414728 is a wasteful number, since it uses less digits than its factorization.

85414728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26794 (or 26790 counting only the distinct ones).

The product of its digits is 71680, while the sum is 39.

The square root of 85414728 is about 9242.0088725342. The cubic root of 85414728 is about 440.3969008222.

The spelling of 85414728 in words is "eighty-five million, four hundred fourteen thousand, seven hundred twenty-eight".