878025451 has 2 divisors, whose sum is σ = 878025452. Its totient is φ = 878025450.

The previous prime is 878025443. The next prime is 878025487. The reversal of 878025451 is 154520878.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 878025451 - 2³ = 878025443 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (878035451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439012725 + 439012726.

It is an arithmetic number, because the mean of its divisors is an integer number (439012726).

Almost surely, 2^878025451 is an apocalyptic number.

878025451 is a deficient number, since it is larger than the sum of its proper divisors (1).

878025451 is an equidigital number, since it uses as much as digits as its factorization.

878025451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 89600, while the sum is 40.

The square root of 878025451 is about 29631.4942417692. The cubic root of 878025451 is about 957.5667003325.

The spelling of 878025451 in words is "eight hundred seventy-eight million, twenty-five thousand, four hundred fifty-one".