471929993 has 2 divisors, whose sum is σ = 471929994. Its totient is φ = 471929992.

The previous prime is 471929921. The next prime is 471930007. The reversal of 471929993 is 399929174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 251793424 + 220136569 = 15868^2 + 14837^2 .

It is a cyclic number.

It is not a de Polignac number, because 471929993 - 2⁸ = 471929737 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (470929993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235964996 + 235964997.

It is an arithmetic number, because the mean of its divisors is an integer number (235964997).

Almost surely, 2^471929993 is an apocalyptic number.

It is an amenable number.

471929993 is a deficient number, since it is larger than the sum of its proper divisors (1).

471929993 is an equidigital number, since it uses as much as digits as its factorization.

471929993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1102248, while the sum is 53.

The square root of 471929993 is about 21723.9497559721. The cubic root of 471929993 is about 778.5607873448.

The spelling of 471929993 in words is "four hundred seventy-one million, nine hundred twenty-nine thousand, nine hundred ninety-three".