427790911 has 2 divisors, whose sum is σ = 427790912. Its totient is φ = 427790910.

The previous prime is 427790837. The next prime is 427790927. The reversal of 427790911 is 119097724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 427790911 - 2¹¹ = 427788863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427790971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213895455 + 213895456.

It is an arithmetic number, because the mean of its divisors is an integer number (213895456).

Almost surely, 2^427790911 is an apocalyptic number.

427790911 is a deficient number, since it is larger than the sum of its proper divisors (1).

427790911 is an equidigital number, since it uses as much as digits as its factorization.

427790911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 427790911 is about 20683.1068991097. The cubic root of 427790911 is about 753.4894647065.

The spelling of 427790911 in words is "four hundred twenty-seven million, seven hundred ninety thousand, nine hundred eleven".