3491247 has 8 divisors (see below), whose sum is σ = 4714240. Its totient is φ = 2297880.

The previous prime is 3491237. The next prime is 3491249. The reversal of 3491247 is 7421943.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3491247 - 2⁶ = 3491183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3491249) 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 7 ways as a sum of consecutive naturals, for example, 7129 + ... + 7602.

It is an arithmetic number, because the mean of its divisors is an integer number (589280).

Almost surely, 2^3491247 is an apocalyptic number.

3491247 is a deficient number, since it is larger than the sum of its proper divisors (1222993).

3491247 is a wasteful number, since it uses less digits than its factorization.

3491247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14813.

The product of its digits is 6048, while the sum is 30.

The square root of 3491247 is about 1868.4878913175. The cubic root of 3491247 is about 151.7027750172.

It can be divided in two parts, 349 and 1247, that added together give a triangular number (1596 = T₅₆).

The spelling of 3491247 in words is "three million, four hundred ninety-one thousand, two hundred forty-seven".