3431247 has 4 divisors (see below), whose sum is σ = 4575000. Its totient is φ = 2287496.

The previous prime is 3431243. The next prime is 3431261. The reversal of 3431247 is 7421343.

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 3431247 - 2² = 3431243 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3431243) 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, 571872 + ... + 571877.

It is an arithmetic number, because the mean of its divisors is an integer number (1143750).

Almost surely, 2^3431247 is an apocalyptic number.

3431247 is a deficient number, since it is larger than the sum of its proper divisors (1143753).

3431247 is a wasteful number, since it uses less digits than its factorization.

3431247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143752.

The product of its digits is 2016, while the sum is 24.

The square root of 3431247 is about 1852.3625455078. The cubic root of 3431247 is about 150.8287021427.

The spelling of 3431247 in words is "three million, four hundred thirty-one thousand, two hundred forty-seven".