260399 has 2 divisors, whose sum is σ = 260400. Its totient is φ = 260398.

The previous prime is 260387. The next prime is 260411. The reversal of 260399 is 993062.

It is a balanced prime because it is at equal distance from previous prime (260387) and next prime (260411).

It is a cyclic number.

It is not a de Polignac number, because 260399 - 2¹⁶ = 194863 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260329) 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, 130199 + 130200.

It is an arithmetic number, because the mean of its divisors is an integer number (130200).

2²⁶⁰³⁹⁹ is an apocalyptic number.

260399 is a deficient number, since it is larger than the sum of its proper divisors (1).

260399 is an equidigital number, since it uses as much as digits as its factorization.

260399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 260399 is about 510.2930530587. The cubic root of 260399 is about 63.8576752659.

It can be divided in two parts, 260 and 399, that multiplied together give a triangular number (103740 = T₄₅₅).

The spelling of 260399 in words is "two hundred sixty thousand, three hundred ninety-nine".