427078 has 4 divisors (see below), whose sum is σ = 640620. Its totient is φ = 213538.

The previous prime is 427073. The next prime is 427079. The reversal of 427078 is 870724.

427078 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106768 + ... + 106771.

It is an arithmetic number, because the mean of its divisors is an integer number (160155).

2⁴²⁷⁰⁷⁸ is an apocalyptic number.

427078 is a deficient number, since it is larger than the sum of its proper divisors (213542).

427078 is a wasteful number, since it uses less digits than its factorization.

427078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213541.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 427078 is about 653.5120503862. The cubic root of 427078 is about 75.3070670082.

The spelling of 427078 in words is "four hundred twenty-seven thousand, seventy-eight".