85017204 has 36 divisors (see below), whose sum is σ = 227547684. Its totient is φ = 26671872.

The previous prime is 85017199. The next prime is 85017209. The reversal of 85017204 is 40271058.

It is an interprime number because it is at equal distance from previous prime (85017199) and next prime (85017209).

It can be written as a sum of positive squares in 2 ways, for example, as 29484900 + 55532304 = 5430^2 + 7452^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85017209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68847 + ... + 70070.

It is an arithmetic number, because the mean of its divisors is an integer number (6320769).

Almost surely, 2^85017204 is an apocalyptic number.

It is an amenable number.

85017204 is an abundant number, since it is smaller than the sum of its proper divisors (142530480).

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

85017204 is a wasteful number, since it uses less digits than its factorization.

85017204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138944 (or 138939 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 85017204 is about 9220.4774279860. The cubic root of 85017204 is about 439.7126291589.

The spelling of 85017204 in words is "eighty-five million, seventeen thousand, two hundred four".