990530271 has 12 divisors (see below), whose sum is σ = 1432164448. Its totient is φ = 659708064.

The previous prime is 990530269. The next prime is 990530309. The reversal of 990530271 is 172035099.

It is not a de Polignac number, because 990530271 - 2¹ = 990530269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990530201) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 43975 + ... + 62568.

Almost surely, 2^990530271 is an apocalyptic number.

990530271 is a deficient number, since it is larger than the sum of its proper divisors (441634177).

990530271 is a wasteful number, since it uses less digits than its factorization.

990530271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107582 (or 107579 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 990530271 is about 31472.6908763773. The cubic root of 990530271 is about 996.8334069392.

The spelling of 990530271 in words is "nine hundred ninety million, five hundred thirty thousand, two hundred seventy-one".