263264867 has 4 divisors (see below), whose sum is σ = 263326056. Its totient is φ = 263203680.

The previous prime is 263264849. The next prime is 263264917. The reversal of 263264867 is 768462362.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 768462362 = 2 ⋅384231181.

It is a cyclic number.

It is not a de Polignac number, because 263264867 - 2⁸ = 263264611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263264167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23609 + ... + 32922.

It is an arithmetic number, because the mean of its divisors is an integer number (65831514).

Almost surely, 2^263264867 is an apocalyptic number.

263264867 is a deficient number, since it is larger than the sum of its proper divisors (61189).

263264867 is an equidigital number, since it uses as much as digits as its factorization.

263264867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61188.

The product of its digits is 580608, while the sum is 44.

The square root of 263264867 is about 16225.4388846650. The cubic root of 263264867 is about 640.9108669120.

The spelling of 263264867 in words is "two hundred sixty-three million, two hundred sixty-four thousand, eight hundred sixty-seven".