3487409 has 4 divisors (see below), whose sum is σ = 3500016. Its totient is φ = 3474804.

The previous prime is 3487403. The next prime is 3487427. The reversal of 3487409 is 9047843.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9047843 = 7 ⋅1292549.

It is a cyclic number.

It is not a de Polignac number, because 3487409 - 2²⁰ = 2438833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3487403) 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, 5879 + ... + 6444.

It is an arithmetic number, because the mean of its divisors is an integer number (875004).

Almost surely, 2^3487409 is an apocalyptic number.

It is an amenable number.

3487409 is a deficient number, since it is larger than the sum of its proper divisors (12607).

3487409 is a wasteful number, since it uses less digits than its factorization.

3487409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12606.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 3487409 is about 1867.4605752197. The cubic root of 3487409 is about 151.6471646354.

The spelling of 3487409 in words is "three million, four hundred eighty-seven thousand, four hundred nine".