2478743 has 2 divisors, whose sum is σ = 2478744. Its totient is φ = 2478742.

The previous prime is 2478731. The next prime is 2478761. The reversal of 2478743 is 3478742.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2478743 - 2⁴ = 2478727 is a prime.

It is a super-2 number, since 2×2478743² = 12288333720098, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2478703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1239371 + 1239372.

It is an arithmetic number, because the mean of its divisors is an integer number (1239372).

2^2478743 is an apocalyptic number.

2478743 is a deficient number, since it is larger than the sum of its proper divisors (1).

2478743 is an equidigital number, since it uses as much as digits as its factorization.

2478743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632, while the sum is 35.

The square root of 2478743 is about 1574.4024263193. The cubic root of 2478743 is about 135.3351162267.

Subtracting 2478743 from its reverse (3478742), we obtain a palindrome (999999).

The spelling of 2478743 in words is "two million, four hundred seventy-eight thousand, seven hundred forty-three".