345383473 has 2 divisors, whose sum is σ = 345383474. Its totient is φ = 345383472.

The previous prime is 345383461. The next prime is 345383491. The reversal of 345383473 is 374383543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227617569 + 117765904 = 15087^2 + 10852^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345383473 is a prime.

It is not a weakly prime, because it can be changed into another prime (345383413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172691736 + 172691737.

It is an arithmetic number, because the mean of its divisors is an integer number (172691737).

Almost surely, 2^345383473 is an apocalyptic number.

It is an amenable number.

345383473 is a deficient number, since it is larger than the sum of its proper divisors (1).

345383473 is an equidigital number, since it uses as much as digits as its factorization.

345383473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 40.

The square root of 345383473 is about 18584.4955002819. The cubic root of 345383473 is about 701.6176689631.

The spelling of 345383473 in words is "three hundred forty-five million, three hundred eighty-three thousand, four hundred seventy-three".