2471247 has 6 divisors (see below), whose sum is σ = 3569592. Its totient is φ = 1647492.

The previous prime is 2471237. The next prime is 2471251. The reversal of 2471247 is 7421742.

It is a happy number.

It is not a de Polignac number, because 2471247 - 2⁸ = 2470991 is a prime.

It is a super-2 number, since 2×2471247² = 12214123470018, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2471247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2471207) 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 5 ways as a sum of consecutive naturals, for example, 137283 + ... + 137300.

It is an arithmetic number, because the mean of its divisors is an integer number (594932).

2^2471247 is an apocalyptic number.

2471247 is a deficient number, since it is larger than the sum of its proper divisors (1098345).

2471247 is a wasteful number, since it uses less digits than its factorization.

2471247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274589 (or 274586 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 2471247 is about 1572.0200380402. The cubic root of 2471247 is about 135.1985555615.

Adding to 2471247 its reverse (7421742), we get a palindrome (9892989).

The spelling of 2471247 in words is "two million, four hundred seventy-one thousand, two hundred forty-seven".