262561879 has 6 divisors (see below), whose sum is σ = 269851344. Its totient is φ = 255464280.

The previous prime is 262561861. The next prime is 262561883. The reversal of 262561879 is 978165262.

It is not a de Polignac number, because 262561879 - 2¹¹ = 262559831 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 (262561279) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 94527 + ... + 97264.

It is an arithmetic number, because the mean of its divisors is an integer number (44975224).

Almost surely, 2^262561879 is an apocalyptic number.

262561879 is a deficient number, since it is larger than the sum of its proper divisors (7289465).

262561879 is an equidigital number, since it uses as much as digits as its factorization.

262561879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191865 (or 191828 counting only the distinct ones).

The product of its digits is 362880, while the sum is 46.

The square root of 262561879 is about 16203.7612608925. The cubic root of 262561879 is about 640.3398902604.

The spelling of 262561879 in words is "two hundred sixty-two million, five hundred sixty-one thousand, eight hundred seventy-nine".