427349811 has 16 divisors (see below), whose sum is σ = 660122624. Its totient is φ = 240853824.

The previous prime is 427349807. The next prime is 427349831. The reversal of 427349811 is 118943724.

It is not a de Polignac number, because 427349811 - 2² = 427349807 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 427349811.

It is not an unprimeable number, because it can be changed into a prime (427349831) 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 in 15 ways as a sum of consecutive naturals, for example, 137851 + ... + 140916.

It is an arithmetic number, because the mean of its divisors is an integer number (41257664).

Almost surely, 2^427349811 is an apocalyptic number.

427349811 is a deficient number, since it is larger than the sum of its proper divisors (232772813).

427349811 is a wasteful number, since it uses less digits than its factorization.

427349811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278850.

The product of its digits is 48384, while the sum is 39.

The square root of 427349811 is about 20672.4408573347. The cubic root of 427349811 is about 753.2303985017.

The spelling of 427349811 in words is "four hundred twenty-seven million, three hundred forty-nine thousand, eight hundred eleven".