260597811 has 16 divisors (see below), whose sum is σ = 379772928. Its totient is φ = 158236800.

The previous prime is 260597801. The next prime is 260597849. The reversal of 260597811 is 118795062.

It is not a de Polignac number, because 260597811 - 2¹⁵ = 260565043 is a prime.

It is a super-2 number, since 2×260597811² = 135822438195983442, 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 260597811.

It is not an unprimeable number, because it can be changed into a prime (260597801) 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 in 15 ways as a sum of consecutive naturals, for example, 80835 + ... + 83996.

It is an arithmetic number, because the mean of its divisors is an integer number (23735808).

Almost surely, 2^260597811 is an apocalyptic number.

260597811 is a deficient number, since it is larger than the sum of its proper divisors (119175117).

260597811 is a wasteful number, since it uses less digits than its factorization.

260597811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164882.

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 260597811 is about 16143.0421854123. The cubic root of 260597811 is about 638.7392261284.

The spelling of 260597811 in words is "two hundred sixty million, five hundred ninety-seven thousand, eight hundred eleven".