3498509 has 4 divisors (see below), whose sum is σ = 3998304. Its totient is φ = 2998716.

The previous prime is 3498503. The next prime is 3498557. The reversal of 3498509 is 9058943.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3498509 - 2⁴ = 3498493 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3498503) 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, 249887 + ... + 249900.

It is an arithmetic number, because the mean of its divisors is an integer number (999576).

Almost surely, 2^3498509 is an apocalyptic number.

It is an amenable number.

3498509 is a deficient number, since it is larger than the sum of its proper divisors (499795).

3498509 is an equidigital number, since it uses as much as digits as its factorization.

3498509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499794.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 3498509 is about 1870.4301644274. The cubic root of 3498509 is about 151.8078857499.

The spelling of 3498509 in words is "three million, four hundred ninety-eight thousand, five hundred nine".