3498421 has 4 divisors (see below), whose sum is σ = 3504844. Its totient is φ = 3492000.

The previous prime is 3498419. The next prime is 3498457. The reversal of 3498421 is 1248943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1248943 = 29 ⋅43067.

It can be written as a sum of positive squares in 2 ways, for example, as 2992900 + 505521 = 1730^2 + 711^2 .

It is a cyclic number.

It is not a de Polignac number, because 3498421 - 2¹ = 3498419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3496421) 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, 2310 + ... + 3511.

It is an arithmetic number, because the mean of its divisors is an integer number (876211).

Almost surely, 2^3498421 is an apocalyptic number.

It is an amenable number.

3498421 is a deficient number, since it is larger than the sum of its proper divisors (6423).

3498421 is an equidigital number, since it uses as much as digits as its factorization.

3498421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6422.

The product of its digits is 6912, while the sum is 31.

The square root of 3498421 is about 1870.4066402791. The cubic root of 3498421 is about 151.8066129023.

The spelling of 3498421 in words is "three million, four hundred ninety-eight thousand, four hundred twenty-one".