3985398 has 12 divisors (see below), whose sum is σ = 8635068. Its totient is φ = 1328460.

The previous prime is 3985393. The next prime is 3985403. The reversal of 3985398 is 8935893.

It is an interprime number because it is at equal distance from previous prime (3985393) and next prime (3985403).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3985393) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110688 + ... + 110723.

It is an arithmetic number, because the mean of its divisors is an integer number (719589).

Almost surely, 2^3985398 is an apocalyptic number.

3985398 is an abundant number, since it is smaller than the sum of its proper divisors (4649670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3985398 is a wasteful number, since it uses less digits than its factorization.

3985398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221419 (or 221416 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 3985398 is about 1996.3461623676. The cubic root of 3985398 is about 158.5467094238.

The spelling of 3985398 in words is "three million, nine hundred eighty-five thousand, three hundred ninety-eight".