260720895 has 16 divisors (see below), whose sum is σ = 421286112. Its totient is φ = 137673600.

The previous prime is 260720849. The next prime is 260720899. The reversal of 260720895 is 598027062.

It is a happy number.

It is not a de Polignac number, because 260720895 - 2¹³ = 260712703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260720899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84532 + ... + 87561.

It is an arithmetic number, because the mean of its divisors is an integer number (26330382).

Almost surely, 2^260720895 is an apocalyptic number.

260720895 is a deficient number, since it is larger than the sum of its proper divisors (160565217).

260720895 is a wasteful number, since it uses less digits than its factorization.

260720895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172202.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 260720895 is about 16146.8540279523. The cubic root of 260720895 is about 638.8397721311.

The spelling of 260720895 in words is "two hundred sixty million, seven hundred twenty thousand, eight hundred ninety-five".