99471 has 8 divisors (see below), whose sum is σ = 134784. Its totient is φ = 65240.

The previous prime is 99469. The next prime is 99487. The reversal of 99471 is 17499.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99471 - 2¹ = 99469 is a prime.

It is a super-3 number, since 3×99471³ = 2952641412792333, which contains 333 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21 + ... + 446.

It is an arithmetic number, because the mean of its divisors is an integer number (16848).

2⁹⁹⁴⁷¹ is an apocalyptic number.

99471 is a deficient number, since it is larger than the sum of its proper divisors (35313).

99471 is a wasteful number, since it uses less digits than its factorization.

99471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541.

The product of its digits is 2268, while the sum is 30.

The square root of 99471 is about 315.3902344715. The cubic root of 99471 is about 46.3338969044. Note that the first 3 decimals are identical.

The spelling of 99471 in words is "ninety-nine thousand, four hundred seventy-one".