8881998 has 16 divisors (see below), whose sum is σ = 18244560. Its totient is φ = 2880576.

The previous prime is 8881997. The next prime is 8882009. The reversal of 8881998 is 8991888.

8881998 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

8881998 is a modest number, since divided by 1998 gives 888 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 8881998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8881991) 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, 19783 + ... + 20226.

It is an arithmetic number, because the mean of its divisors is an integer number (1140285).

Almost surely, 2^8881998 is an apocalyptic number.

8881998 is an abundant number, since it is smaller than the sum of its proper divisors (9362562).

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

8881998 is a wasteful number, since it uses less digits than its factorization.

8881998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40051.

The product of its digits is 331776, while the sum is 51.

The square root of 8881998 is about 2980.2681087446. The cubic root of 8881998 is about 207.0952909071.

It can be divided in two parts, 888 and 1998, that multiplied together give a square (1774224 = 1332²).

The spelling of 8881998 in words is "eight million, eight hundred eighty-one thousand, nine hundred ninety-eight".