85180837 has 8 divisors (see below), whose sum is σ = 99000000. Its totient is φ = 71774304.

The previous prime is 85180813. The next prime is 85180847. The reversal of 85180837 is 73808158.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-85180837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85180837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85180847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102712 + ... + 103537.

It is an arithmetic number, because the mean of its divisors is an integer number (12375000).

Almost surely, 2^85180837 is an apocalyptic number.

It is an amenable number.

85180837 is a deficient number, since it is larger than the sum of its proper divisors (13819163).

85180837 is a wasteful number, since it uses less digits than its factorization.

85180837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206315.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 85180837 is about 9229.3465099107. The cubic root of 85180837 is about 439.9945539960.

The spelling of 85180837 in words is "eighty-five million, one hundred eighty thousand, eight hundred thirty-seven".