9992471 has 4 divisors (see below), whose sum is σ = 10156344. Its totient is φ = 9828600.

The previous prime is 9992449. The next prime is 9992483. The reversal of 9992471 is 1742999.

It is a happy number.

9992471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9992471 is a prime.

It is a super-3 number, since 3×9992471³ (a number of 22 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 (9992401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81845 + ... + 81966.

It is an arithmetic number, because the mean of its divisors is an integer number (2539086).

Almost surely, 2^9992471 is an apocalyptic number.

9992471 is a deficient number, since it is larger than the sum of its proper divisors (163873).

9992471 is a wasteful number, since it uses less digits than its factorization.

9992471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163872.

The product of its digits is 40824, while the sum is 41.

The square root of 9992471 is about 3161.0869965884. The cubic root of 9992471 is about 215.3893862987.

The spelling of 9992471 in words is "nine million, nine hundred ninety-two thousand, four hundred seventy-one".