85208436 has 42 divisors (see below), whose sum is σ = 223577522. Its totient is φ = 28401840.

The previous prime is 85208419. The next prime is 85208479. The reversal of 85208436 is 63480258.

It can be written as a sum of positive squares in only one way, i.e., 49280400 + 35928036 = 7020^2 + 5994^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 85208436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 11695 + ... + 17526.

Almost surely, 2^85208436 is an apocalyptic number.

It is an amenable number.

85208436 is an abundant number, since it is smaller than the sum of its proper divisors (138369086).

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

85208436 is a wasteful number, since it uses less digits than its factorization.

85208436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29243 (or 29226 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 85208436 is about 9230.8415651012. The cubic root of 85208436 is about 440.0420689804.

The spelling of 85208436 in words is "eighty-five million, two hundred eight thousand, four hundred thirty-six".