4097539 has 4 divisors (see below), whose sum is σ = 4104400. Its totient is φ = 4090680.

The previous prime is 4097537. The next prime is 4097551. The reversal of 4097539 is 9357904.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4097539 - 2¹ = 4097537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4097498 and 4097507.

It is not an unprimeable number, because it can be changed into a prime (4097537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2439 + ... + 3760.

It is an arithmetic number, because the mean of its divisors is an integer number (1026100).

Almost surely, 2^4097539 is an apocalyptic number.

4097539 is a deficient number, since it is larger than the sum of its proper divisors (6861).

4097539 is an equidigital number, since it uses as much as digits as its factorization.

4097539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6860.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 4097539 is about 2024.2378812778. The cubic root of 4097539 is about 160.0200365532.

It can be divided in two parts, 40975 and 39, that added together give a palindrome (41014).

The spelling of 4097539 in words is "four million, ninety-seven thousand, five hundred thirty-nine".