3598421 has 2 divisors, whose sum is σ = 3598422. Its totient is φ = 3598420.

The previous prime is 3598411. The next prime is 3598423. The reversal of 3598421 is 1248953.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3591025 + 7396 = 1895^2 + 86^2 .

It is an emirp because it is prime and its reverse (1248953) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3598421 - 2¹⁰ = 3597397 is a prime.

Together with 3598423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3598423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1799210 + 1799211.

It is an arithmetic number, because the mean of its divisors is an integer number (1799211).

Almost surely, 2^3598421 is an apocalyptic number.

It is an amenable number.

3598421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3598421 is an equidigital number, since it uses as much as digits as its factorization.

3598421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 32.

The square root of 3598421 is about 1896.9504474287. The cubic root of 3598421 is about 153.2394757464.

The spelling of 3598421 in words is "three million, five hundred ninety-eight thousand, four hundred twenty-one".