9387428 has 6 divisors (see below), whose sum is σ = 16428006. Its totient is φ = 4693712.

The previous prime is 9387421. The next prime is 9387449. The reversal of 9387428 is 8247839.

It can be written as a sum of positive squares in only one way, i.e., 8988004 + 399424 = 2998^2 + 632^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (9387421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1173425 + ... + 1173432.

It is an arithmetic number, because the mean of its divisors is an integer number (2738001).

Almost surely, 2^9387428 is an apocalyptic number.

It is an amenable number.

9387428 is a deficient number, since it is larger than the sum of its proper divisors (7040578).

9387428 is a wasteful number, since it uses less digits than its factorization.

9387428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346861 (or 2346859 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 9387428 is about 3063.8909902279. The cubic root of 9387428 is about 210.9513001269.

The spelling of 9387428 in words is "nine million, three hundred eighty-seven thousand, four hundred twenty-eight".