340030679 has 2 divisors, whose sum is σ = 340030680. Its totient is φ = 340030678.

The previous prime is 340030633. The next prime is 340030721. The reversal of 340030679 is 976030043.

It is a strong prime.

It is an emirp because it is prime and its reverse (976030043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340030679 - 2²⁰ = 338982103 is a prime.

It is a super-2 number, since 2×340030679² = 231241725322402082, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340030619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170015339 + 170015340.

It is an arithmetic number, because the mean of its divisors is an integer number (170015340).

Almost surely, 2^340030679 is an apocalyptic number.

340030679 is a deficient number, since it is larger than the sum of its proper divisors (1).

340030679 is an equidigital number, since it uses as much as digits as its factorization.

340030679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 340030679 is about 18439.9207970099. The cubic root of 340030679 is about 697.9741967128.

The spelling of 340030679 in words is "three hundred forty million, thirty thousand, six hundred seventy-nine".