471128731 has 16 divisors (see below), whose sum is σ = 514201600. Its totient is φ = 430012800.

The previous prime is 471128717. The next prime is 471128743. The reversal of 471128731 is 137821174.

It is a cyclic number.

It is not a de Polignac number, because 471128731 - 2⁵ = 471128699 is a prime.

It is a super-2 number, since 2×471128731² = 443924562347340722, which contains 22 as substring.

It is the 21706-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (471128771) by changing a digit.

It is a nontrivial repunit in base 21705.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140290 + ... + 143608.

It is an arithmetic number, because the mean of its divisors is an integer number (32137600).

Almost surely, 2^471128731 is an apocalyptic number.

471128731 is a deficient number, since it is larger than the sum of its proper divisors (43072869).

471128731 is a wasteful number, since it uses less digits than its factorization.

471128731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3610.

The product of its digits is 9408, while the sum is 34.

The square root of 471128731 is about 21705.5000172767. The cubic root of 471128731 is about 778.1199136477.

The spelling of 471128731 in words is "four hundred seventy-one million, one hundred twenty-eight thousand, seven hundred thirty-one".