345995807 has 2 divisors, whose sum is σ = 345995808. Its totient is φ = 345995806.

The previous prime is 345995779. The next prime is 345995809. The reversal of 345995807 is 708599543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345995807 - 2¹⁴ = 345979423 is a prime.

Together with 345995809, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345995809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172997903 + 172997904.

It is an arithmetic number, because the mean of its divisors is an integer number (172997904).

Almost surely, 2^345995807 is an apocalyptic number.

345995807 is a deficient number, since it is larger than the sum of its proper divisors (1).

345995807 is an equidigital number, since it uses as much as digits as its factorization.

345995807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1360800, while the sum is 50.

The square root of 345995807 is about 18600.9625288586. The cubic root of 345995807 is about 702.0320592875.

The spelling of 345995807 in words is "three hundred forty-five million, nine hundred ninety-five thousand, eight hundred seven".