990002471 has 2 divisors, whose sum is σ = 990002472. Its totient is φ = 990002470.

The previous prime is 990002443. The next prime is 990002537. The reversal of 990002471 is 174200099.

990002471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 990002471 - 2¹⁴ = 989986087 is a prime.

It is a super-3 number, since 3×990002471³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (990002071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495001235 + 495001236.

It is an arithmetic number, because the mean of its divisors is an integer number (495001236).

Almost surely, 2^990002471 is an apocalyptic number.

990002471 is a deficient number, since it is larger than the sum of its proper divisors (1).

990002471 is an equidigital number, since it uses as much as digits as its factorization.

990002471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 990002471 is about 31464.3047118477. The cubic root of 990002471 is about 996.6563226159.

The spelling of 990002471 in words is "nine hundred ninety million, two thousand, four hundred seventy-one".