85911516 has 60 divisors (see below), whose sum is σ = 228872952. Its totient is φ = 28091232.

The previous prime is 85911481. The next prime is 85911541. The reversal of 85911516 is 61511958.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14671 + ... + 19673.

Almost surely, 2^85911516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85911516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114436476).

85911516 is an abundant number, since it is smaller than the sum of its proper divisors (142961436).

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

85911516 is a wasteful number, since it uses less digits than its factorization.

85911516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5072 (or 5061 counting only the distinct ones).

The product of its digits is 10800, while the sum is 36.

The square root of 85911516 is about 9268.8465301784. The cubic root of 85911516 is about 441.2490610343.

The spelling of 85911516 in words is "eighty-five million, nine hundred eleven thousand, five hundred sixteen".