970728 has 32 divisors (see below), whose sum is σ = 2648160. Its totient is φ = 294080.

The previous prime is 970721. The next prime is 970747. The reversal of 970728 is 827079.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (970721) 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 in 7 ways as a sum of consecutive naturals, for example, 1575 + ... + 2102.

It is an arithmetic number, because the mean of its divisors is an integer number (82755).

2⁹⁷⁰⁷²⁸ is an apocalyptic number.

It is an amenable number.

970728 is an abundant number, since it is smaller than the sum of its proper divisors (1677432).

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

970728 is a wasteful number, since it uses less digits than its factorization.

970728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3697 (or 3693 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 970728 is about 985.2552968647. The cubic root of 970728 is about 99.0145881982.

The spelling of 970728 in words is "nine hundred seventy thousand, seven hundred twenty-eight".