3487217 has 4 divisors (see below), whose sum is σ = 3491136. Its totient is φ = 3483300.

The previous prime is 3487207. The next prime is 3487219. The reversal of 3487217 is 7127843.

It is a happy number.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7127843 = 1489 ⋅4787.

It is a cyclic number.

It is not a de Polignac number, because 3487217 - 2⁴ = 3487201 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (3487219) 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, 92 + ... + 2642.

It is an arithmetic number, because the mean of its divisors is an integer number (872784).

Almost surely, 2^3487217 is an apocalyptic number.

It is an amenable number.

3487217 is a deficient number, since it is larger than the sum of its proper divisors (3919).

3487217 is a wasteful number, since it uses less digits than its factorization.

3487217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3918.

The product of its digits is 9408, while the sum is 32.

The square root of 3487217 is about 1867.4091678044. The cubic root of 3487217 is about 151.6443815960.

The spelling of 3487217 in words is "three million, four hundred eighty-seven thousand, two hundred seventeen".