8629988 has 12 divisors (see below), whose sum is σ = 15138732. Its totient is φ = 4304640.

The previous prime is 8629981. The next prime is 8630003. The reversal of 8629988 is 8899268.

8629988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6190144 + 2439844 = 2488^2 + 1562^2 .

It is not an unprimeable number, because it can be changed into a prime (8629981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533 + ... + 4188.

It is an arithmetic number, because the mean of its divisors is an integer number (1261561).

Almost surely, 2^8629988 is an apocalyptic number.

It is an amenable number.

8629988 is a deficient number, since it is larger than the sum of its proper divisors (6508744).

8629988 is a wasteful number, since it uses less digits than its factorization.

8629988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5182 (or 5180 counting only the distinct ones).

The product of its digits is 497664, while the sum is 50.

The square root of 8629988 is about 2937.6841218892. The cubic root of 8629988 is about 205.1178224141.

The spelling of 8629988 in words is "eight million, six hundred twenty-nine thousand, nine hundred eighty-eight".