3728985 has 24 divisors (see below), whose sum is σ = 6465024. Its totient is φ = 1834560.

The previous prime is 3728983. The next prime is 3728987. The reversal of 3728985 is 5898273.

It is an interprime number because it is at equal distance from previous prime (3728983) and next prime (3728987).

It is not a de Polignac number, because 3728985 - 2¹ = 3728983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3728983) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1800 + ... + 3270.

It is an arithmetic number, because the mean of its divisors is an integer number (269376).

Almost surely, 2^3728985 is an apocalyptic number.

It is an amenable number.

3728985 is a deficient number, since it is larger than the sum of its proper divisors (2736039).

3728985 is a wasteful number, since it uses less digits than its factorization.

3728985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1505 (or 1492 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 3728985 is about 1931.0580001647. The cubic root of 3728985 is about 155.0708659649.

The spelling of 3728985 in words is "three million, seven hundred twenty-eight thousand, nine hundred eighty-five".