1878263 has 2 divisors, whose sum is σ = 1878264. Its totient is φ = 1878262.

The previous prime is 1878257. The next prime is 1878277. The reversal of 1878263 is 3628781.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1878263 - 2⁶ = 1878199 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1878223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 939131 + 939132.

It is an arithmetic number, because the mean of its divisors is an integer number (939132).

2^1878263 is an apocalyptic number.

1878263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1878263 is an equidigital number, since it uses as much as digits as its factorization.

1878263 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1878263 is about 1370.4973549774. The cubic root of 1878263 is about 123.3820933733.

The spelling of 1878263 in words is "one million, eight hundred seventy-eight thousand, two hundred sixty-three".