85418658 has 64 divisors (see below), whose sum is σ = 205632000. Its totient is φ = 26127360.

The previous prime is 85418657. The next prime is 85418677. The reversal of 85418658 is 85681458.

It is not an unprimeable number, because it can be changed into a prime (85418651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190018 + ... + 190466.

It is an arithmetic number, because the mean of its divisors is an integer number (3213000).

Almost surely, 2^85418658 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85418658, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102816000).

85418658 is an abundant number, since it is smaller than the sum of its proper divisors (120213342).

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

85418658 is a wasteful number, since it uses less digits than its factorization.

85418658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744 (or 738 counting only the distinct ones).

The product of its digits is 307200, while the sum is 45.

The square root of 85418658 is about 9242.2214862012. The cubic root of 85418658 is about 440.4036550566.

The spelling of 85418658 in words is "eighty-five million, four hundred eighteen thousand, six hundred fifty-eight".