878025487 has 2 divisors, whose sum is σ = 878025488. Its totient is φ = 878025486.

The previous prime is 878025451. The next prime is 878025497. The reversal of 878025487 is 784520878.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 878025487 - 2¹⁹ = 877501199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 878025487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (878025427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439012743 + 439012744.

It is an arithmetic number, because the mean of its divisors is an integer number (439012744).

Almost surely, 2^878025487 is an apocalyptic number.

878025487 is a deficient number, since it is larger than the sum of its proper divisors (1).

878025487 is an equidigital number, since it uses as much as digits as its factorization.

878025487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1003520, while the sum is 49.

The square root of 878025487 is about 29631.4948492309. The cubic root of 878025487 is about 957.5667134196.

The spelling of 878025487 in words is "eight hundred seventy-eight million, twenty-five thousand, four hundred eighty-seven".