260535487 has 4 divisors (see below), whose sum is σ = 260832096. Its totient is φ = 260238880.

The previous prime is 260535481. The next prime is 260535493. The reversal of 260535487 is 784535062.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 784535062 = 2 ⋅392267531.

It is an interprime number because it is at equal distance from previous prime (260535481) and next prime (260535493).

It is a cyclic number.

It is not a de Polignac number, because 260535487 - 2³ = 260535479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260535481) 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 3 ways as a sum of consecutive naturals, for example, 146983 + ... + 148744.

It is an arithmetic number, because the mean of its divisors is an integer number (65208024).

Almost surely, 2^260535487 is an apocalyptic number.

260535487 is a deficient number, since it is larger than the sum of its proper divisors (296609).

260535487 is an equidigital number, since it uses as much as digits as its factorization.

260535487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296608.

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 260535487 is about 16141.1117027298. Note that the first 3 decimals coincide. The cubic root of 260535487 is about 638.6883022452.

The spelling of 260535487 in words is "two hundred sixty million, five hundred thirty-five thousand, four hundred eighty-seven".