99020471 has 12 divisors (see below), whose sum is σ = 112597800. Its totient is φ = 86911440.

The previous prime is 99020447. The next prime is 99020477. The reversal of 99020471 is 17402099.

It is not a de Polignac number, because 99020471 - 2¹⁰ = 99019447 is a prime.

It is a super-3 number, since 3×99020471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99020477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10601 + ... + 17618.

It is an arithmetic number, because the mean of its divisors is an integer number (9383150).

Almost surely, 2^99020471 is an apocalyptic number.

99020471 is a deficient number, since it is larger than the sum of its proper divisors (13577329).

99020471 is a wasteful number, since it uses less digits than its factorization.

99020471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28270 (or 28259 counting only the distinct ones).

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

The square root of 99020471 is about 9950.9030243491. The cubic root of 99020471 is about 462.6383843022.

The spelling of 99020471 in words is "ninety-nine million, twenty thousand, four hundred seventy-one".