340427677 has 2 divisors, whose sum is σ = 340427678. Its totient is φ = 340427676.

The previous prime is 340427651. The next prime is 340427707. The reversal of 340427677 is 776724043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 276523641 + 63904036 = 16629^2 + 7994^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340427677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340427777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170213838 + 170213839.

It is an arithmetic number, because the mean of its divisors is an integer number (170213839).

Almost surely, 2^340427677 is an apocalyptic number.

It is an amenable number.

340427677 is a deficient number, since it is larger than the sum of its proper divisors (1).

340427677 is an equidigital number, since it uses as much as digits as its factorization.

340427677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 197568, while the sum is 40.

The square root of 340427677 is about 18450.6822909073. The cubic root of 340427677 is about 698.2457276932.

The spelling of 340427677 in words is "three hundred forty million, four hundred twenty-seven thousand, six hundred seventy-seven".