345693247 has 2 divisors, whose sum is σ = 345693248. Its totient is φ = 345693246.

The previous prime is 345693241. The next prime is 345693259. The reversal of 345693247 is 742396543.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 345693247 - 2¹⁹ = 345168959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345693241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172846623 + 172846624.

It is an arithmetic number, because the mean of its divisors is an integer number (172846624).

Almost surely, 2^345693247 is an apocalyptic number.

345693247 is a deficient number, since it is larger than the sum of its proper divisors (1).

345693247 is an equidigital number, since it uses as much as digits as its factorization.

345693247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 43.

The square root of 345693247 is about 18592.8278376367. The cubic root of 345693247 is about 701.8273662831.

The spelling of 345693247 in words is "three hundred forty-five million, six hundred ninety-three thousand, two hundred forty-seven".