260221087 has 8 divisors (see below), whose sum is σ = 297575072. Its totient is φ = 222912000.

The previous prime is 260221067. The next prime is 260221097. The reversal of 260221087 is 780122062.

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

It is a cyclic number.

It is not a de Polignac number, because 260221087 - 2¹⁹ = 259696799 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 (260221067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2287 + ... + 22927.

It is an arithmetic number, because the mean of its divisors is an integer number (37196884).

Almost surely, 2^260221087 is an apocalyptic number.

260221087 is a deficient number, since it is larger than the sum of its proper divisors (37353985).

260221087 is a wasteful number, since it uses less digits than its factorization.

260221087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22449.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 260221087 is about 16131.3696566659. The cubic root of 260221087 is about 638.4312874438.

The spelling of 260221087 in words is "two hundred sixty million, two hundred twenty-one thousand, eighty-seven".