264803887 has 2 divisors, whose sum is σ = 264803888. Its totient is φ = 264803886.

The previous prime is 264803879. The next prime is 264803909. The reversal of 264803887 is 788308462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 264803887 - 2³ = 264803879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264803827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132401943 + 132401944.

It is an arithmetic number, because the mean of its divisors is an integer number (132401944).

Almost surely, 2^264803887 is an apocalyptic number.

264803887 is a deficient number, since it is larger than the sum of its proper divisors (1).

264803887 is an equidigital number, since it uses as much as digits as its factorization.

264803887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 516096, while the sum is 46.

The square root of 264803887 is about 16272.7959183418. The cubic root of 264803887 is about 642.1573413459.

The spelling of 264803887 in words is "two hundred sixty-four million, eight hundred three thousand, eight hundred eighty-seven".