2878361 has 2 divisors, whose sum is σ = 2878362. Its totient is φ = 2878360.

The previous prime is 2878333. The next prime is 2878373. The reversal of 2878361 is 1638782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1485961 + 1392400 = 1219^2 + 1180^2 .

It is a cyclic number.

It is not a de Polignac number, because 2878361 - 2⁶ = 2878297 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2878331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1439180 + 1439181.

It is an arithmetic number, because the mean of its divisors is an integer number (1439181).

2^2878361 is an apocalyptic number.

It is an amenable number.

2878361 is a deficient number, since it is larger than the sum of its proper divisors (1).

2878361 is an equidigital number, since it uses as much as digits as its factorization.

2878361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 35.

The square root of 2878361 is about 1696.5733111186. The cubic root of 2878361 is about 142.2487374834.

The spelling of 2878361 in words is "two million, eight hundred seventy-eight thousand, three hundred sixty-one".