2478347 has 2 divisors, whose sum is σ = 2478348. Its totient is φ = 2478346.

The previous prime is 2478337. The next prime is 2478349. The reversal of 2478347 is 7438742.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2478347 - 2⁴ = 2478331 is a prime.

It is a super-2 number, since 2×2478347² = 12284407704818, which contains 22 as substring.

Together with 2478349, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2²¹ + 4⁵ + 7³ + 8 + 3³ + 4⁹ + 7⁶ .

It is not a weakly prime, because it can be changed into another prime (2478349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1239173 + 1239174.

It is an arithmetic number, because the mean of its divisors is an integer number (1239174).

2^2478347 is an apocalyptic number.

2478347 is a deficient number, since it is larger than the sum of its proper divisors (1).

2478347 is an equidigital number, since it uses as much as digits as its factorization.

2478347 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 2478347 is about 1574.2766592947. The cubic root of 2478347 is about 135.3279088693.

The spelling of 2478347 in words is "two million, four hundred seventy-eight thousand, three hundred forty-seven".