471951709 has 2 divisors, whose sum is σ = 471951710. Its totient is φ = 471951708.

The previous prime is 471951707. The next prime is 471951721. The reversal of 471951709 is 907159174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 468722500 + 3229209 = 21650^2 + 1797^2 .

It is a cyclic number.

It is not a de Polignac number, because 471951709 - 2¹ = 471951707 is a prime.

Together with 471951707, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (471951707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235975854 + 235975855.

It is an arithmetic number, because the mean of its divisors is an integer number (235975855).

Almost surely, 2^471951709 is an apocalyptic number.

It is an amenable number.

471951709 is a deficient number, since it is larger than the sum of its proper divisors (1).

471951709 is an equidigital number, since it uses as much as digits as its factorization.

471951709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 43.

The square root of 471951709 is about 21724.4495672503. The cubic root of 471951709 is about 778.5727290642.

The spelling of 471951709 in words is "four hundred seventy-one million, nine hundred fifty-one thousand, seven hundred nine".