340788667 has 2 divisors, whose sum is σ = 340788668. Its totient is φ = 340788666.

The previous prime is 340788629. The next prime is 340788689. The reversal of 340788667 is 766887043.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340788667 is a prime.

It is a super-2 number, since 2×340788667² = 232273831111273778, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 340788667.

It is not a weakly prime, because it can be changed into another prime (340788607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170394333 + 170394334.

It is an arithmetic number, because the mean of its divisors is an integer number (170394334).

Almost surely, 2^340788667 is an apocalyptic number.

340788667 is a deficient number, since it is larger than the sum of its proper divisors (1).

340788667 is an equidigital number, since it uses as much as digits as its factorization.

340788667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The square root of 340788667 is about 18460.4622639846. The cubic root of 340788667 is about 698.4924474322.

The spelling of 340788667 in words is "three hundred forty million, seven hundred eighty-eight thousand, six hundred sixty-seven".