801266887 has 2 divisors, whose sum is σ = 801266888. Its totient is φ = 801266886.

The previous prime is 801266881. The next prime is 801266923. The reversal of 801266887 is 788662108.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 801266887 - 2¹¹ = 801264839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (801266881) 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 as a sum of consecutive naturals, namely, 400633443 + 400633444.

It is an arithmetic number, because the mean of its divisors is an integer number (400633444).

Almost surely, 2^801266887 is an apocalyptic number.

801266887 is a deficient number, since it is larger than the sum of its proper divisors (1).

801266887 is an equidigital number, since it uses as much as digits as its factorization.

801266887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 258048, while the sum is 46.

The square root of 801266887 is about 28306.6579977220. The cubic root of 801266887 is about 928.8075389903.

The spelling of 801266887 in words is "eight hundred one million, two hundred sixty-six thousand, eight hundred eighty-seven".