427638055 has 8 divisors (see below), whose sum is σ = 552640032. Its totient is φ = 315794208.

The previous prime is 427638047. The next prime is 427638059. The reversal of 427638055 is 550836724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 427638055 - 2³ = 427638047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 427637999 and 427638017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427638059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3289459 + ... + 3289588.

It is an arithmetic number, because the mean of its divisors is an integer number (69080004).

Almost surely, 2^427638055 is an apocalyptic number.

427638055 is a deficient number, since it is larger than the sum of its proper divisors (125001977).

427638055 is a wasteful number, since it uses less digits than its factorization.

427638055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6579065.

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 427638055 is about 20679.4113794373. The cubic root of 427638055 is about 753.3997097169.

The spelling of 427638055 in words is "four hundred twenty-seven million, six hundred thirty-eight thousand, fifty-five".