99990214 has 4 divisors (see below), whose sum is σ = 149985324. Its totient is φ = 49995106.

The previous prime is 99990181. The next prime is 99990239. The reversal of 99990214 is 41209999.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24997552 + ... + 24997555.

It is an arithmetic number, because the mean of its divisors is an integer number (37496331).

Almost surely, 2^99990214 is an apocalyptic number.

99990214 is a deficient number, since it is larger than the sum of its proper divisors (49995110).

99990214 is a wasteful number, since it uses less digits than its factorization.

99990214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49995109.

The product of its (nonzero) digits is 52488, while the sum is 43.

The square root of 99990214 is about 9999.5106880287. The cubic root of 99990214 is about 464.1437420046.

The spelling of 99990214 in words is "ninety-nine million, nine hundred ninety thousand, two hundred fourteen".