3728847 has 8 divisors (see below), whose sum is σ = 5011456. Its totient is φ = 2466072.

The previous prime is 3728821. The next prime is 3728861. The reversal of 3728847 is 7488273.

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

It is not a de Polignac number, because 3728847 - 2⁷ = 3728719 is a prime.

It is a Duffinian number.

3728847 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3728867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4513 + ... + 5274.

It is an arithmetic number, because the mean of its divisors is an integer number (626432).

Almost surely, 2^3728847 is an apocalyptic number.

3728847 is a deficient number, since it is larger than the sum of its proper divisors (1282609).

3728847 is a wasteful number, since it uses less digits than its factorization.

3728847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9917.

The product of its digits is 75264, while the sum is 39.

The square root of 3728847 is about 1931.0222681264. The cubic root of 3728847 is about 155.0689530187.

The spelling of 3728847 in words is "three million, seven hundred twenty-eight thousand, eight hundred forty-seven".