471364781 has 2 divisors, whose sum is σ = 471364782. Its totient is φ = 471364780.

The previous prime is 471364757. The next prime is 471364813. The reversal of 471364781 is 187463174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 471280681 + 84100 = 21709^2 + 290^2 .

It is a cyclic number.

It is not a de Polignac number, because 471364781 - 2⁶ = 471364717 is a prime.

It is a super-2 number, since 2×471364781² = 444369513534355922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (471364181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235682390 + 235682391.

It is an arithmetic number, because the mean of its divisors is an integer number (235682391).

Almost surely, 2^471364781 is an apocalyptic number.

It is an amenable number.

471364781 is a deficient number, since it is larger than the sum of its proper divisors (1).

471364781 is an equidigital number, since it uses as much as digits as its factorization.

471364781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 41.

The square root of 471364781 is about 21710.9368982548. The cubic root of 471364781 is about 778.2498459616.

The spelling of 471364781 in words is "four hundred seventy-one million, three hundred sixty-four thousand, seven hundred eighty-one".