85478464 has 28 divisors (see below), whose sum is σ = 171281344. Its totient is φ = 42321024.

The previous prime is 85478441. The next prime is 85478483. The reversal of 85478464 is 46487458.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109 + ... + 13075.

Almost surely, 2^85478464 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 85478464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85640672).

85478464 is an abundant number, since it is smaller than the sum of its proper divisors (85802880).

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

85478464 is a wasteful number, since it uses less digits than its factorization.

85478464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13082 (or 13072 counting only the distinct ones).

The product of its digits is 860160, while the sum is 46.

The square root of 85478464 is about 9245.4563976042. The cubic root of 85478464 is about 440.5064141686.

The spelling of 85478464 in words is "eighty-five million, four hundred seventy-eight thousand, four hundred sixty-four".