57728712 has 48 divisors (see below), whose sum is σ = 150902640. Its totient is φ = 18402208.

The previous prime is 57728711. The next prime is 57728729. The reversal of 57728712 is 21782775.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (57728711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10423 + ... + 14969.

It is an arithmetic number, because the mean of its divisors is an integer number (3143805).

Almost surely, 2^57728712 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 57728712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75451320).

57728712 is an abundant number, since it is smaller than the sum of its proper divisors (93173928).

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

57728712 is a wasteful number, since it uses less digits than its factorization.

57728712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4602 (or 4575 counting only the distinct ones).

The product of its digits is 54880, while the sum is 39.

The square root of 57728712 is about 7597.9413001154. The cubic root of 57728712 is about 386.4832020378.

The spelling of 57728712 in words is "fifty-seven million, seven hundred twenty-eight thousand, seven hundred twelve".