9990214 has 16 divisors (see below), whose sum is σ = 16405200. Its totient is φ = 4534560.

The previous prime is 9990209. The next prime is 9990221. The reversal of 9990214 is 4120999.

It is a self number, because there is not a number n which added to its sum of digits gives 9990214.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1564 + ... + 4735.

It is an arithmetic number, because the mean of its divisors is an integer number (1025325).

Almost surely, 2^9990214 is an apocalyptic number.

9990214 is a deficient number, since it is larger than the sum of its proper divisors (6414986).

9990214 is a wasteful number, since it uses less digits than its factorization.

9990214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6375.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 9990214 is about 3160.7299789764. The cubic root of 9990214 is about 215.3731684066.

It can be divided in two parts, 99902 and 14, that multiplied together give a triangular number (1398628 = T₁₆₇₂).

The spelling of 9990214 in words is "nine million, nine hundred ninety thousand, two hundred fourteen".