471237997 has 2 divisors, whose sum is σ = 471237998. Its totient is φ = 471237996.

The previous prime is 471237983. The next prime is 471238003. The reversal of 471237997 is 799732174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 327573801 + 143664196 = 18099^2 + 11986^2 .

It is a cyclic number.

It is not a de Polignac number, because 471237997 - 2¹¹ = 471235949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 471237997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (471237917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235618998 + 235618999.

It is an arithmetic number, because the mean of its divisors is an integer number (235618999).

Almost surely, 2^471237997 is an apocalyptic number.

It is an amenable number.

471237997 is a deficient number, since it is larger than the sum of its proper divisors (1).

471237997 is an equidigital number, since it uses as much as digits as its factorization.

471237997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 666792, while the sum is 49.

The square root of 471237997 is about 21708.0168831701. The cubic root of 471237997 is about 778.1800638592.

The spelling of 471237997 in words is "four hundred seventy-one million, two hundred thirty-seven thousand, nine hundred ninety-seven".