870778368 has 120 divisors (see below), whose sum is σ = 2539364256. Its totient is φ = 287232000.

The previous prime is 870778361. The next prime is 870778399. The reversal of 870778368 is 863877078.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870778361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 464473 + ... + 466343.

Almost surely, 2^870778368 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 870778368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1269682128).

870778368 is an abundant number, since it is smaller than the sum of its proper divisors (1668585888).

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

870778368 is a wasteful number, since it uses less digits than its factorization.

870778368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996 (or 1977 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 54.

The square root of 870778368 is about 29508.9540309378. The cubic root of 870778368 is about 954.9248839432.

The spelling of 870778368 in words is "eight hundred seventy million, seven hundred seventy-eight thousand, three hundred sixty-eight".