4091608 has 32 divisors (see below), whose sum is σ = 8235360. Its totient is φ = 1900800.

The previous prime is 4091603. The next prime is 4091609. The reversal of 4091608 is 8061904.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4091603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6508 + ... + 7108.

It is an arithmetic number, because the mean of its divisors is an integer number (257355).

Almost surely, 2^4091608 is an apocalyptic number.

It is an amenable number.

4091608 is an abundant number, since it is smaller than the sum of its proper divisors (4143752).

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

4091608 is a wasteful number, since it uses less digits than its factorization.

4091608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 4091608 is about 2022.7723549624. The cubic root of 4091608 is about 159.9427920478.

The spelling of 4091608 in words is "four million, ninety-one thousand, six hundred eight".