3728066 has 32 divisors (see below), whose sum is σ = 6480000. Its totient is φ = 1596672.

The previous prime is 3728063. The next prime is 3728069. The reversal of 3728066 is 6608273.

It is an interprime number because it is at equal distance from previous prime (3728063) and next prime (3728069).

It is a super-2 number, since 2×3728066² = 27796952200712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3728063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18635 + ... + 18833.

It is an arithmetic number, because the mean of its divisors is an integer number (202500).

Almost surely, 2^3728066 is an apocalyptic number.

3728066 is a deficient number, since it is larger than the sum of its proper divisors (2751934).

3728066 is a wasteful number, since it uses less digits than its factorization.

3728066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 3728066 is about 1930.8200330430. The cubic root of 3728066 is about 155.0581259624.

The spelling of 3728066 in words is "three million, seven hundred twenty-eight thousand, sixty-six".