878289549 has 8 divisors (see below), whose sum is σ = 1182422592. Its totient is φ = 579841440.

The previous prime is 878289541. The next prime is 878289593. The reversal of 878289549 is 945982878.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 878289549 - 2³ = 878289541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 878289492 and 878289501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878289541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1420872 + ... + 1421489.

It is an arithmetic number, because the mean of its divisors is an integer number (147802824).

Almost surely, 2^878289549 is an apocalyptic number.

It is an amenable number.

878289549 is a deficient number, since it is larger than the sum of its proper divisors (304133043).

878289549 is a wasteful number, since it uses less digits than its factorization.

878289549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2842467.

The product of its digits is 11612160, while the sum is 60.

The square root of 878289549 is about 29635.9502800231. The cubic root of 878289549 is about 957.6626983467.

The spelling of 878289549 in words is "eight hundred seventy-eight million, two hundred eighty-nine thousand, five hundred forty-nine".