345700639 has 2 divisors, whose sum is σ = 345700640. Its totient is φ = 345700638.

The previous prime is 345700577. The next prime is 345700697. The reversal of 345700639 is 936007543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345700639 - 2¹⁵ = 345667871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 345700598 and 345700607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345700699) 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, 172850319 + 172850320.

It is an arithmetic number, because the mean of its divisors is an integer number (172850320).

Almost surely, 2^345700639 is an apocalyptic number.

345700639 is a deficient number, since it is larger than the sum of its proper divisors (1).

345700639 is an equidigital number, since it uses as much as digits as its factorization.

345700639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 345700639 is about 18593.0266229035. The cubic root of 345700639 is about 701.8323686669.

The spelling of 345700639 in words is "three hundred forty-five million, seven hundred thousand, six hundred thirty-nine".