3425247 has 30 divisors (see below), whose sum is σ = 5959008. Its totient is φ = 1955016.

The previous prime is 3425243. The next prime is 3425249. The reversal of 3425247 is 7425243.

It is not a de Polignac number, because 3425247 - 2² = 3425243 is a prime.

It is a super-2 number, since 2×3425247² = 23464634022018, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 3425247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3425243) 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 29 ways as a sum of consecutive naturals, for example, 3538 + ... + 4400.

Almost surely, 2^3425247 is an apocalyptic number.

3425247 is a deficient number, since it is larger than the sum of its proper divisors (2533761).

3425247 is an equidigital number, since it uses as much as digits as its factorization.

3425247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889 (or 873 counting only the distinct ones).

The product of its digits is 6720, while the sum is 27.

The square root of 3425247 is about 1850.7422835176. The cubic root of 3425247 is about 150.7407360461.

It can be divided in two parts, 34 and 25247, that added together give a square (25281 = 159²).

The spelling of 3425247 in words is "three million, four hundred twenty-five thousand, two hundred forty-seven".