3598121 has 4 divisors (see below), whose sum is σ = 3605700. Its totient is φ = 3590544.

The previous prime is 3598109. The next prime is 3598141. The reversal of 3598121 is 1218953.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2131600 + 1466521 = 1460^2 + 1211^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3598121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3598141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3026 + ... + 4043.

It is an arithmetic number, because the mean of its divisors is an integer number (901425).

Almost surely, 2^3598121 is an apocalyptic number.

It is an amenable number.

3598121 is a deficient number, since it is larger than the sum of its proper divisors (7579).

3598121 is an equidigital number, since it uses as much as digits as its factorization.

3598121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7578.

The product of its digits is 2160, while the sum is 29.

The square root of 3598121 is about 1896.8713714957. The cubic root of 3598121 is about 153.2352171081.

The spelling of 3598121 in words is "three million, five hundred ninety-eight thousand, one hundred twenty-one".