9728146 has 4 divisors (see below), whose sum is σ = 14592222. Its totient is φ = 4864072.

The previous prime is 9728143. The next prime is 9728153. The reversal of 9728146 is 6418279.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6076225 + 3651921 = 2465^2 + 1911^2 .

It is not an unprimeable number, because it can be changed into a prime (9728143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2432035 + ... + 2432038.

Almost surely, 2^9728146 is an apocalyptic number.

9728146 is a deficient number, since it is larger than the sum of its proper divisors (4864076).

9728146 is a wasteful number, since it uses less digits than its factorization.

9728146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4864075.

The product of its digits is 24192, while the sum is 37.

The square root of 9728146 is about 3118.9975953822. The cubic root of 9728146 is about 213.4731998382.

The spelling of 9728146 in words is "nine million, seven hundred twenty-eight thousand, one hundred forty-six".