39676728 has 128 divisors (see below), whose sum is σ = 125637120. Its totient is φ = 10160640.

The previous prime is 39676711. The next prime is 39676729. The reversal of 39676728 is 82767693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39676729) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80563 + ... + 81053.

It is an arithmetic number, because the mean of its divisors is an integer number (981540).

Almost surely, 2^39676728 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 39676728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62818560).

39676728 is an abundant number, since it is smaller than the sum of its proper divisors (85960392).

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

39676728 is a wasteful number, since it uses less digits than its factorization.

39676728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557 (or 553 counting only the distinct ones).

The product of its digits is 762048, while the sum is 48.

The square root of 39676728 is about 6298.9465785955. The cubic root of 39676728 is about 341.0713839371.

It can be divided in two parts, 39676 and 728, that added together give a palindrome (40404).

The spelling of 39676728 in words is "thirty-nine million, six hundred seventy-six thousand, seven hundred twenty-eight".