427691877 has 16 divisors (see below), whose sum is σ = 595847040. Its totient is φ = 272365632.

The previous prime is 427691867. The next prime is 427691879. The reversal of 427691877 is 778196724.

It is not a de Polignac number, because 427691877 - 2⁴ = 427691861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427691879) 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, 53463 + ... + 60939.

It is an arithmetic number, because the mean of its divisors is an integer number (37240440).

Almost surely, 2^427691877 is an apocalyptic number.

It is an amenable number.

427691877 is a deficient number, since it is larger than the sum of its proper divisors (168155163).

427691877 is a wasteful number, since it uses less digits than its factorization.

427691877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8332.

The product of its digits is 1185408, while the sum is 51.

The square root of 427691877 is about 20680.7126811433. The cubic root of 427691877 is about 753.4313157114.

The spelling of 427691877 in words is "four hundred twenty-seven million, six hundred ninety-one thousand, eight hundred seventy-seven".