868639948 has 24 divisors (see below), whose sum is σ = 1745593920. Its totient is φ = 374055120.

The previous prime is 868639943. The next prime is 868639963. The reversal of 868639948 is 849936868.

868639948 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×868639948² = 1509070718522885408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (868639943) 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, 518686 + ... + 520357.

It is an arithmetic number, because the mean of its divisors is an integer number (72733080).

Almost surely, 2^868639948 is an apocalyptic number.

It is an amenable number.

868639948 is an abundant number, since it is smaller than the sum of its proper divisors (876953972).

868639948 is a wasteful number, since it uses less digits than its factorization.

868639948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039077 (or 1039075 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 61.

The square root of 868639948 is about 29472.6983494895. The cubic root of 868639948 is about 954.1425553942.

The spelling of 868639948 in words is "eight hundred sixty-eight million, six hundred thirty-nine thousand, nine hundred forty-eight".