868662548 has 24 divisors (see below), whose sum is σ = 1653981672. Its totient is φ = 396785664.

The previous prime is 868662547. The next prime is 868662559. The reversal of 868662548 is 845266868.

It can be written as a sum of positive squares in 4 ways, for example, as 17073424 + 851589124 = 4132^2 + 29182^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 868662548.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868662541) 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, 81065 + ... + 91152.

It is an arithmetic number, because the mean of its divisors is an integer number (68915903).

Almost surely, 2^868662548 is an apocalyptic number.

It is an amenable number.

868662548 is a deficient number, since it is larger than the sum of its proper divisors (785319124).

868662548 is a wasteful number, since it uses less digits than its factorization.

868662548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172331 (or 172329 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 53.

The square root of 868662548 is about 29473.0817526773. The cubic root of 868662548 is about 954.1508301824.

The spelling of 868662548 in words is "eight hundred sixty-eight million, six hundred sixty-two thousand, five hundred forty-eight".