427434877 has 4 divisors (see below), whose sum is σ = 435499740. Its totient is φ = 419370016.

The previous prime is 427434853. The next prime is 427434901. The reversal of 427434877 is 778434724.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (427434853) and next prime (427434901).

It can be written as a sum of positive squares in 2 ways, for example, as 200902276 + 226532601 = 14174^2 + 15051^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427434877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427434827) 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 3 ways as a sum of consecutive naturals, for example, 4032352 + ... + 4032457.

It is an arithmetic number, because the mean of its divisors is an integer number (108874935).

Almost surely, 2^427434877 is an apocalyptic number.

It is an amenable number.

427434877 is a deficient number, since it is larger than the sum of its proper divisors (8064863).

427434877 is an equidigital number, since it uses as much as digits as its factorization.

427434877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8064862.

The product of its digits is 1053696, while the sum is 46.

The square root of 427434877 is about 20674.4982284940. The cubic root of 427434877 is about 753.2803732098.

The spelling of 427434877 in words is "four hundred twenty-seven million, four hundred thirty-four thousand, eight hundred seventy-seven".