8859978 has 24 divisors (see below), whose sum is σ = 19644768. Its totient is φ = 2884392.

The previous prime is 8859973. The next prime is 8859989. The reversal of 8859978 is 8799588.

It is not an unprimeable number, because it can be changed into a prime (8859973) 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, 4950 + ... + 6497.

It is an arithmetic number, because the mean of its divisors is an integer number (818532).

Almost surely, 2^8859978 is an apocalyptic number.

8859978 is an abundant number, since it is smaller than the sum of its proper divisors (10784790).

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

8859978 is a wasteful number, since it uses less digits than its factorization.

8859978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11498 (or 11495 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 54.

The square root of 8859978 is about 2976.5715177029. The cubic root of 8859978 is about 206.9240076724.

The spelling of 8859978 in words is "eight million, eight hundred fifty-nine thousand, nine hundred seventy-eight".