878047425 has 72 divisors (see below), whose sum is σ = 1686871200. Its totient is φ = 447749280.

The previous prime is 878047411. The next prime is 878047451. The reversal of 878047425 is 524740878.

878047425 is a `hidden beast` number, since 87 + 80 + 474 + 25 = 666.

It is not a de Polignac number, because 878047425 - 2⁸ = 878047169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 355846 + ... + 358304.

Almost surely, 2^878047425 is an apocalyptic number.

It is an amenable number.

878047425 is a deficient number, since it is larger than the sum of its proper divisors (808823775).

878047425 is a wasteful number, since it uses less digits than its factorization.

878047425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524 (or 2490 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 45.

The square root of 878047425 is about 29631.8650273654. The cubic root of 878047425 is about 957.5746884818.

The spelling of 878047425 in words is "eight hundred seventy-eight million, forty-seven thousand, four hundred twenty-five".