712450728 has 96 divisors (see below), whose sum is σ = 2182995360. Its totient is φ = 215887680.

The previous prime is 712450723. The next prime is 712450729. The reversal of 712450728 is 827054217.

712450728 is a `hidden beast` number, since 7 + 124 + 507 + 28 = 666.

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 = 712450692 and 712450701.

It is not an unprimeable number, because it can be changed into a prime (712450721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4726 + ... + 38042.

It is an arithmetic number, because the mean of its divisors is an integer number (22739535).

Almost surely, 2^712450728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 712450728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1091497680).

712450728 is an abundant number, since it is smaller than the sum of its proper divisors (1470544632).

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

712450728 is a wasteful number, since it uses less digits than its factorization.

712450728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33349 (or 33333 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 712450728 is about 26691.7726649992. The cubic root of 712450728 is about 893.1374049908.

The spelling of 712450728 in words is "seven hundred twelve million, four hundred fifty thousand, seven hundred twenty-eight".