93447816 has 96 divisors (see below), whose sum is σ = 293536320. Its totient is φ = 24266880.

The previous prime is 93447779. The next prime is 93447821. The reversal of 93447816 is 61874439.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18030 + ... + 22626.

It is an arithmetic number, because the mean of its divisors is an integer number (3057670).

Almost surely, 2^93447816 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 93447816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146768160).

93447816 is an abundant number, since it is smaller than the sum of its proper divisors (200088504).

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

93447816 is a wasteful number, since it uses less digits than its factorization.

93447816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4635 (or 4620 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 93447816 is about 9666.8410558983. The cubic root of 93447816 is about 453.7915297158.

The spelling of 93447816 in words is "ninety-three million, four hundred forty-seven thousand, eight hundred sixteen".