102879868 has 48 divisors (see below), whose sum is σ = 223706560. Its totient is φ = 40310784.

The previous prime is 102879863. The next prime is 102879871. The reversal of 102879868 is 868978201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102879863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38380 + ... + 40972.

Almost surely, 2^102879868 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 102879868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111853280).

102879868 is an abundant number, since it is smaller than the sum of its proper divisors (120826692).

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

102879868 is a wasteful number, since it uses less digits than its factorization.

102879868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2726 (or 2724 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 49.

The square root of 102879868 is about 10142.9713595179. The cubic root of 102879868 is about 468.5725029188.

The spelling of 102879868 in words is "one hundred two million, eight hundred seventy-nine thousand, eight hundred sixty-eight".