7878341 has 2 divisors, whose sum is σ = 7878342. Its totient is φ = 7878340.

The previous prime is 7878337. The next prime is 7878347. The reversal of 7878341 is 1438787.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4060225 + 3818116 = 2015^2 + 1954^2 .

It is a cyclic number.

It is not a de Polignac number, because 7878341 - 2² = 7878337 is a prime.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7878295 and 7878304.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7878347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3939170 + 3939171.

It is an arithmetic number, because the mean of its divisors is an integer number (3939171).

Almost surely, 2^7878341 is an apocalyptic number.

It is an amenable number.

7878341 is a deficient number, since it is larger than the sum of its proper divisors (1).

7878341 is an equidigital number, since it uses as much as digits as its factorization.

7878341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632, while the sum is 38.

The square root of 7878341 is about 2806.8382568292. The cubic root of 7878341 is about 198.9809919304.

The spelling of 7878341 in words is "seven million, eight hundred seventy-eight thousand, three hundred forty-one".