3456247 has 4 divisors (see below), whose sum is σ = 3464560. Its totient is φ = 3447936.

The previous prime is 3456241. The next prime is 3456269. The reversal of 3456247 is 7426543.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3456247 is a prime.

It is a d-powerful number, because it can be written as 3¹² + 4 + 5 + 6 + 2²¹ + 4⁶ + 7⁷ .

It is a Duffinian number.

3456247 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3456241) 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, 3498 + ... + 4375.

It is an arithmetic number, because the mean of its divisors is an integer number (866140).

Almost surely, 2^3456247 is an apocalyptic number.

3456247 is a deficient number, since it is larger than the sum of its proper divisors (8313).

3456247 is an equidigital number, since it uses as much as digits as its factorization.

3456247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8312.

The product of its digits is 20160, while the sum is 31.

The square root of 3456247 is about 1859.0984374153. The cubic root of 3456247 is about 151.1941277592.

The spelling of 3456247 in words is "three million, four hundred fifty-six thousand, two hundred forty-seven".