9145878 has 64 divisors (see below), whose sum is σ = 22448640. Its totient is φ = 2426112.

The previous prime is 9145867. The next prime is 9145883. The reversal of 9145878 is 8785419.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58176 + ... + 58332.

It is an arithmetic number, because the mean of its divisors is an integer number (350760).

Almost surely, 2^9145878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9145878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11224320).

9145878 is an abundant number, since it is smaller than the sum of its proper divisors (13302762).

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

9145878 is a wasteful number, since it uses less digits than its factorization.

9145878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261.

The product of its digits is 80640, while the sum is 42.

The square root of 9145878 is about 3024.2152701155. The cubic root of 9145878 is about 209.1262105602.

The spelling of 9145878 in words is "nine million, one hundred forty-five thousand, eight hundred seventy-eight".