340303687 has 2 divisors, whose sum is σ = 340303688. Its totient is φ = 340303686.

The previous prime is 340303673. The next prime is 340303703. The reversal of 340303687 is 786303043.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340303687 - 2¹¹ = 340301639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340303387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170151843 + 170151844.

It is an arithmetic number, because the mean of its divisors is an integer number (170151844).

Almost surely, 2^340303687 is an apocalyptic number.

340303687 is a deficient number, since it is larger than the sum of its proper divisors (1).

340303687 is an equidigital number, since it uses as much as digits as its factorization.

340303687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 340303687 is about 18447.3219465591. The cubic root of 340303687 is about 698.1609461017.

The spelling of 340303687 in words is "three hundred forty million, three hundred three thousand, six hundred eighty-seven".