345047471 has 2 divisors, whose sum is σ = 345047472. Its totient is φ = 345047470.

The previous prime is 345047447. The next prime is 345047477. The reversal of 345047471 is 174740543.

It is a strong prime.

It is an emirp because it is prime and its reverse (174740543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345047471 - 2¹⁴ = 345031087 is a prime.

It is a super-3 number, since 3×345047471³ (a number of 27 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345047477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172523735 + 172523736.

It is an arithmetic number, because the mean of its divisors is an integer number (172523736).

Almost surely, 2^345047471 is an apocalyptic number.

345047471 is a deficient number, since it is larger than the sum of its proper divisors (1).

345047471 is an equidigital number, since it uses as much as digits as its factorization.

345047471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 345047471 is about 18575.4534534153. The cubic root of 345047471 is about 701.3900751464.

The spelling of 345047471 in words is "three hundred forty-five million, forty-seven thousand, four hundred seventy-one".