260536821 has 8 divisors (see below), whose sum is σ = 347495904. Its totient is φ = 173634480.

The previous prime is 260536819. The next prime is 260536823. The reversal of 260536821 is 128635062.

It is an interprime number because it is at equal distance from previous prime (260536819) and next prime (260536823).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 260536821 - 2¹ = 260536819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260536823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1966 + ... + 22911.

It is an arithmetic number, because the mean of its divisors is an integer number (43436988).

Almost surely, 2^260536821 is an apocalyptic number.

It is an amenable number.

260536821 is a deficient number, since it is larger than the sum of its proper divisors (86959083).

260536821 is a wasteful number, since it uses less digits than its factorization.

260536821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28371.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 260536821 is about 16141.1530257290. The cubic root of 260536821 is about 638.6893923190.

The spelling of 260536821 in words is "two hundred sixty million, five hundred thirty-six thousand, eight hundred twenty-one".