878397771 has 8 divisors (see below), whose sum is σ = 1171339984. Its totient is φ = 585527040.

The previous prime is 878397749. The next prime is 878397781. The reversal of 878397771 is 177793878.

878397771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 878397771 - 2⁷ = 878397643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (878397781) 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, 26655 + ... + 49671.

It is an arithmetic number, because the mean of its divisors is an integer number (146417498).

Almost surely, 2^878397771 is an apocalyptic number.

878397771 is a deficient number, since it is larger than the sum of its proper divisors (292942213).

878397771 is a wasteful number, since it uses less digits than its factorization.

878397771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35741.

The product of its digits is 4148928, while the sum is 57.

The square root of 878397771 is about 29637.7760805361. The cubic root of 878397771 is about 957.7020308258.

The spelling of 878397771 in words is "eight hundred seventy-eight million, three hundred ninety-seven thousand, seven hundred seventy-one".