3497239 has 4 divisors (see below), whose sum is σ = 3501760. Its totient is φ = 3492720.

The previous prime is 3497231. The next prime is 3497243. The reversal of 3497239 is 9327943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9327943 = 2777 ⋅3359.

It is a cyclic number.

It is not a de Polignac number, because 3497239 - 2³ = 3497231 is a prime.

It is a Duffinian number.

3497239 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3497198 and 3497207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3497231) 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, 774 + ... + 2755.

It is an arithmetic number, because the mean of its divisors is an integer number (875440).

Almost surely, 2^3497239 is an apocalyptic number.

3497239 is a deficient number, since it is larger than the sum of its proper divisors (4521).

3497239 is an equidigital number, since it uses as much as digits as its factorization.

3497239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4520.

The product of its digits is 40824, while the sum is 37.

The square root of 3497239 is about 1870.0906395146. The cubic root of 3497239 is about 151.7895141761.

The spelling of 3497239 in words is "three million, four hundred ninety-seven thousand, two hundred thirty-nine".