345471757 has 2 divisors, whose sum is σ = 345471758. Its totient is φ = 345471756.

The previous prime is 345471703. The next prime is 345471767. The reversal of 345471757 is 757174543.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201327721 + 144144036 = 14189^2 + 12006^2 .

It is a cyclic number.

It is not a de Polignac number, because 345471757 - 2¹⁹ = 344947469 is a prime.

It is a super-3 number, since 3×345471757³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345471767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172735878 + 172735879.

It is an arithmetic number, because the mean of its divisors is an integer number (172735879).

Almost surely, 2^345471757 is an apocalyptic number.

It is an amenable number.

345471757 is a deficient number, since it is larger than the sum of its proper divisors (1).

345471757 is an equidigital number, since it uses as much as digits as its factorization.

345471757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 411600, while the sum is 43.

The square root of 345471757 is about 18586.8705542380. The cubic root of 345471757 is about 701.6774443936.

The spelling of 345471757 in words is "three hundred forty-five million, four hundred seventy-one thousand, seven hundred fifty-seven".