9319428 has 24 divisors (see below), whose sum is σ = 24161760. Its totient is φ = 3106440.

The previous prime is 9319403. The next prime is 9319447. The reversal of 9319428 is 8249139.

9319428 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 9319392 and 9319401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43038 + ... + 43253.

It is an arithmetic number, because the mean of its divisors is an integer number (1006740).

Almost surely, 2^9319428 is an apocalyptic number.

It is an amenable number.

9319428 is an abundant number, since it is smaller than the sum of its proper divisors (14842332).

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

9319428 is a wasteful number, since it uses less digits than its factorization.

9319428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86304 (or 86296 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 9319428 is about 3052.7738206425. The cubic root of 9319428 is about 210.4407071357.

The spelling of 9319428 in words is "nine million, three hundred nineteen thousand, four hundred twenty-eight".