877738568 has 96 divisors (see below), whose sum is σ = 1995535800. Its totient is φ = 360557568.

The previous prime is 877738549. The next prime is 877738571. The reversal of 877738568 is 865837778.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 870132004 + 7606564 = 29498^2 + 2758^2 .

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1058378 + ... + 1059206.

Almost surely, 2^877738568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 877738568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (997767900).

877738568 is an abundant number, since it is smaller than the sum of its proper divisors (1117797232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

877738568 is a wasteful number, since it uses less digits than its factorization.

877738568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959 (or 948 counting only the distinct ones).

The product of its digits is 15805440, while the sum is 59.

The square root of 877738568 is about 29626.6530002969. The cubic root of 877738568 is about 957.4623982943.

The spelling of 877738568 in words is "eight hundred seventy-seven million, seven hundred thirty-eight thousand, five hundred sixty-eight".