471820931 has 2 divisors, whose sum is σ = 471820932. Its totient is φ = 471820930.

The previous prime is 471820927. The next prime is 471820949. The reversal of 471820931 is 139028174.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 471820931 - 2² = 471820927 is a prime.

It is a super-4 number, since 4×471820931⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 471820891 and 471820900.

It is not a weakly prime, because it can be changed into another prime (471825931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235910465 + 235910466.

It is an arithmetic number, because the mean of its divisors is an integer number (235910466).

Almost surely, 2^471820931 is an apocalyptic number.

471820931 is a deficient number, since it is larger than the sum of its proper divisors (1).

471820931 is an equidigital number, since it uses as much as digits as its factorization.

471820931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 471820931 is about 21721.4394320450. The cubic root of 471820931 is about 778.5008081532.

The spelling of 471820931 in words is "four hundred seventy-one million, eight hundred twenty thousand, nine hundred thirty-one".