3487447 has 4 divisors (see below), whose sum is σ = 3561696. Its totient is φ = 3413200.

The previous prime is 3487439. The next prime is 3487489. The reversal of 3487447 is 7447843.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3487447 - 2³ = 3487439 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3487427) 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, 37054 + ... + 37147.

It is an arithmetic number, because the mean of its divisors is an integer number (890424).

Almost surely, 2^3487447 is an apocalyptic number.

3487447 is a deficient number, since it is larger than the sum of its proper divisors (74249).

3487447 is an equidigital number, since it uses as much as digits as its factorization.

3487447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74248.

The product of its digits is 75264, while the sum is 37.

The square root of 3487447 is about 1867.4707494363. The cubic root of 3487447 is about 151.6477154332.

The spelling of 3487447 in words is "three million, four hundred eighty-seven thousand, four hundred forty-seven".