3728747 has 8 divisors (see below), whose sum is σ = 4135152. Its totient is φ = 3333600.

The previous prime is 3728743. The next prime is 3728759. The reversal of 3728747 is 7478273.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3728747 - 2² = 3728743 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3728747.

It is not an unprimeable number, because it can be changed into a prime (3728743) 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, 2108 + ... + 3449.

It is an arithmetic number, because the mean of its divisors is an integer number (516894).

Almost surely, 2^3728747 is an apocalyptic number.

3728747 is a deficient number, since it is larger than the sum of its proper divisors (406405).

3728747 is a wasteful number, since it uses less digits than its factorization.

3728747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5629.

The product of its digits is 65856, while the sum is 38.

The square root of 3728747 is about 1930.9963749319. The cubic root of 3728747 is about 155.0675667963.

It can be divided in two parts, 372 and 8747, that added together give a palindrome (9119).

The spelling of 3728747 in words is "three million, seven hundred twenty-eight thousand, seven hundred forty-seven".