85170361 has 16 divisors (see below), whose sum is σ = 91584000. Its totient is φ = 79027200.

The previous prime is 85170353. The next prime is 85170373. The reversal of 85170361 is 16307158.

85170361 = T₁₆₉ + T₁₇₀ + ... + T₈₀₁.

It is a cyclic number.

It is not a de Polignac number, because 85170361 - 2³ = 85170353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85170061) 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, 189465 + ... + 189913.

It is an arithmetic number, because the mean of its divisors is an integer number (5724000).

Almost surely, 2^85170361 is an apocalyptic number.

It is an amenable number.

85170361 is a deficient number, since it is larger than the sum of its proper divisors (6413639).

85170361 is a wasteful number, since it uses less digits than its factorization.

85170361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 85170361 is about 9228.7789549864. The cubic root of 85170361 is about 439.9765156199.

The spelling of 85170361 in words is "eighty-five million, one hundred seventy thousand, three hundred sixty-one".