345470893 has 2 divisors, whose sum is σ = 345470894. Its totient is φ = 345470892.

The previous prime is 345470869. The next prime is 345470897. The reversal of 345470893 is 398074543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 324108009 + 21362884 = 18003^2 + 4622^2 .

It is a cyclic number.

It is not a de Polignac number, because 345470893 - 2⁹ = 345470381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345470897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172735446 + 172735447.

It is an arithmetic number, because the mean of its divisors is an integer number (172735447).

Almost surely, 2^345470893 is an apocalyptic number.

It is an amenable number.

345470893 is a deficient number, since it is larger than the sum of its proper divisors (1).

345470893 is an equidigital number, since it uses as much as digits as its factorization.

345470893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 345470893 is about 18586.8473120107. The cubic root of 345470893 is about 701.6768594449.

It can be divided in two parts, 3454 and 70893, that added together give a palindrome (74347).

The spelling of 345470893 in words is "three hundred forty-five million, four hundred seventy thousand, eight hundred ninety-three".