340868623 has 2 divisors, whose sum is σ = 340868624. Its totient is φ = 340868622.

The previous prime is 340868621. The next prime is 340868659. The reversal of 340868623 is 326868043.

It is a weak prime.

It is an emirp because it is prime and its reverse (326868043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340868623 - 2¹ = 340868621 is a prime.

It is a super-2 number, since 2×340868623² = 232382836291832258, which contains 22 as substring.

Together with 340868621, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340868621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170434311 + 170434312.

It is an arithmetic number, because the mean of its divisors is an integer number (170434312).

Almost surely, 2^340868623 is an apocalyptic number.

340868623 is a deficient number, since it is larger than the sum of its proper divisors (1).

340868623 is an equidigital number, since it uses as much as digits as its factorization.

340868623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 340868623 is about 18462.6277382175. The cubic root of 340868623 is about 698.5470700379.

The spelling of 340868623 in words is "three hundred forty million, eight hundred sixty-eight thousand, six hundred twenty-three".