85071528 has 24 divisors (see below), whose sum is σ = 230402250. Its totient is φ = 28357152.

The previous prime is 85071523. The next prime is 85071559. The reversal of 85071528 is 82517058.

It can be written as a sum of positive squares in only one way, i.e., 85045284 + 26244 = 9222^2 + 162^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 85071492 and 85071501.

It is not an unprimeable number, because it can be changed into a prime (85071521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 590703 + ... + 590846.

Almost surely, 2^85071528 is an apocalyptic number.

It is an amenable number.

85071528 is an abundant number, since it is smaller than the sum of its proper divisors (145330722).

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

85071528 is a wasteful number, since it uses less digits than its factorization.

85071528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181561 (or 1181554 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 85071528 is about 9223.4227920008. The cubic root of 85071528 is about 439.8062645716.

The spelling of 85071528 in words is "eighty-five million, seventy-one thousand, five hundred twenty-eight".