3728818 has 8 divisors (see below), whose sum is σ = 5676912. Its totient is φ = 1836516.

The previous prime is 3728789. The next prime is 3728821. The reversal of 3728818 is 8188273.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13780 + ... + 14047.

It is an arithmetic number, because the mean of its divisors is an integer number (709614).

Almost surely, 2^3728818 is an apocalyptic number.

3728818 is a deficient number, since it is larger than the sum of its proper divisors (1948094).

3728818 is a wasteful number, since it uses less digits than its factorization.

3728818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27896.

The product of its digits is 21504, while the sum is 37.

The square root of 3728818 is about 1931.0147591357. The cubic root of 3728818 is about 155.0685510167.

The spelling of 3728818 in words is "three million, seven hundred twenty-eight thousand, eight hundred eighteen".