2478843 has 18 divisors (see below), whose sum is σ = 3750292. Its totient is φ = 1636200.

The previous prime is 2478809. The next prime is 2478877. The reversal of 2478843 is 3488742.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is an interprime number because it is at equal distance from previous prime (2478809) and next prime (2478877).

It is not a de Polignac number, because 2478843 - 2⁸ = 2478587 is a prime.

It is a super-2 number, since 2×2478843² = 12289325237298, which contains 22 as substring.

It is a Duffinian number.

2478843 is a lucky number.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 2478798 and 2478807.

It is not an unprimeable number, because it can be changed into a prime (2478803) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 24493 + ... + 24593.

2^2478843 is an apocalyptic number.

2478843 is a deficient number, since it is larger than the sum of its proper divisors (1271449).

2478843 is an frugal number, since it uses more digits than its factorization.

2478843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 104 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 2478843 is about 1574.4341840801. The cubic root of 2478843 is about 135.3369361451.

It can be divided in two parts, 2478 and 843, that added together give a triangular number (3321 = T₈₁).

The spelling of 2478843 in words is "two million, four hundred seventy-eight thousand, eight hundred forty-three".