471371921 has 2 divisors, whose sum is σ = 471371922. Its totient is φ = 471371920.

The previous prime is 471371899. The next prime is 471371939. The reversal of 471371921 is 129173174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 470673025 + 698896 = 21695^2 + 836^2 .

It is a cyclic number.

It is not a de Polignac number, because 471371921 - 2¹⁰ = 471370897 is a prime.

It is a Chen prime.

It is equal to p_24924491 and since 471371921 and 24924491 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (471371941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235685960 + 235685961.

It is an arithmetic number, because the mean of its divisors is an integer number (235685961).

Almost surely, 2^471371921 is an apocalyptic number.

It is an amenable number.

471371921 is a deficient number, since it is larger than the sum of its proper divisors (1).

471371921 is an equidigital number, since it uses as much as digits as its factorization.

471371921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10584, while the sum is 35.

The square root of 471371921 is about 21711.1013308860. The cubic root of 471371921 is about 778.2537754561.

The spelling of 471371921 in words is "four hundred seventy-one million, three hundred seventy-one thousand, nine hundred twenty-one".