2447491 has 2 divisors, whose sum is σ = 2447492. Its totient is φ = 2447490.

The previous prime is 2447483. The next prime is 2447519. The reversal of 2447491 is 1947442.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2447491 - 2³ = 2447483 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2448491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1223745 + 1223746.

It is an arithmetic number, because the mean of its divisors is an integer number (1223746).

2^2447491 is an apocalyptic number.

2447491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2447491 is an equidigital number, since it uses as much as digits as its factorization.

2447491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 31.

The square root of 2447491 is about 1564.4459083011. The cubic root of 2447491 is about 134.7639404644.

The spelling of 2447491 in words is "two million, four hundred forty-seven thousand, four hundred ninety-one".