3791728 has 10 divisors (see below), whose sum is σ = 7346504. Its totient is φ = 1895856.

The previous prime is 3791719. The next prime is 3791741. The reversal of 3791728 is 8271973.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 118476 + ... + 118507.

Almost surely, 2^3791728 is an apocalyptic number.

It is an amenable number.

3791728 is a deficient number, since it is larger than the sum of its proper divisors (3554776).

3791728 is a wasteful number, since it uses less digits than its factorization.

3791728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236991 (or 236985 counting only the distinct ones).

The product of its digits is 21168, while the sum is 37.

The square root of 3791728 is about 1947.2359898071. The cubic root of 3791728 is about 155.9357614100.

The spelling of 3791728 in words is "three million, seven hundred ninety-one thousand, seven hundred twenty-eight".