260867815 has 16 divisors (see below), whose sum is σ = 354866400. Its totient is φ = 182500992.

The previous prime is 260867807. The next prime is 260867843. The reversal of 260867815 is 518768062.

It is a cyclic number.

It is not a de Polignac number, because 260867815 - 2³ = 260867807 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104380 + ... + 106849.

It is an arithmetic number, because the mean of its divisors is an integer number (22179150).

Almost surely, 2^260867815 is an apocalyptic number.

260867815 is a deficient number, since it is larger than the sum of its proper divisors (93998585).

260867815 is a wasteful number, since it uses less digits than its factorization.

260867815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211266.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 260867815 is about 16151.4028802454. The cubic root of 260867815 is about 638.9597480855.

The spelling of 260867815 in words is "two hundred sixty million, eight hundred sixty-seven thousand, eight hundred fifteen".