990053212 has 12 divisors (see below), whose sum is σ = 1736832160. Its totient is φ = 493815456.

The previous prime is 990053189. The next prime is 990053219. The reversal of 990053212 is 212350099.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990053219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300948 + ... + 304219.

Almost surely, 2^990053212 is an apocalyptic number.

It is an amenable number.

990053212 is a deficient number, since it is larger than the sum of its proper divisors (746778948).

990053212 is a wasteful number, since it uses less digits than its factorization.

990053212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605580 (or 605578 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 990053212 is about 31465.1110279306. Note that the first 3 decimals coincide. The cubic root of 990053212 is about 996.6733496691.

The spelling of 990053212 in words is "nine hundred ninety million, fifty-three thousand, two hundred twelve".