8990216 has 8 divisors (see below), whose sum is σ = 16856670. Its totient is φ = 4495104.

The previous prime is 8990209. The next prime is 8990239. The reversal of 8990216 is 6120998.

It can be written as a sum of positive squares in only one way, i.e., 7896100 + 1094116 = 2810^2 + 1046^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561881 + ... + 561896.

Almost surely, 2^8990216 is an apocalyptic number.

It is an amenable number.

8990216 is a deficient number, since it is larger than the sum of its proper divisors (7866454).

8990216 is a wasteful number, since it uses less digits than its factorization.

8990216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123783 (or 1123779 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 8990216 is about 2998.3688899133. The cubic root of 8990216 is about 207.9329789001.

The spelling of 8990216 in words is "eight million, nine hundred ninety thousand, two hundred sixteen".