4097581 has 8 divisors (see below), whose sum is σ = 4233600. Its totient is φ = 3963360.

The previous prime is 4097579. The next prime is 4097603. The reversal of 4097581 is 1857904.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4097581 - 2¹ = 4097579 is a prime.

It is a super-2 number, since 2×4097581² = 33580340103122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4097551) 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, 5340 + ... + 6058.

It is an arithmetic number, because the mean of its divisors is an integer number (529200).

Almost surely, 2^4097581 is an apocalyptic number.

4097581 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4097581 is a deficient number, since it is larger than the sum of its proper divisors (136019).

4097581 is a wasteful number, since it uses less digits than its factorization.

4097581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 4097581 is about 2024.2482555260. The cubic root of 4097581 is about 160.0205832894.

The spelling of 4097581 in words is "four million, ninety-seven thousand, five hundred eighty-one".