427807013 has 4 divisors (see below), whose sum is σ = 432042828. Its totient is φ = 423571200.

The previous prime is 427807001. The next prime is 427807049. The reversal of 427807013 is 310708724.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 368563204 + 59243809 = 19198^2 + 7697^2 .

It is a cyclic number.

It is not a de Polignac number, because 427807013 - 2⁶ = 427806949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427807063) 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, 2117756 + ... + 2117957.

It is an arithmetic number, because the mean of its divisors is an integer number (108010707).

Almost surely, 2^427807013 is an apocalyptic number.

It is an amenable number.

427807013 is a deficient number, since it is larger than the sum of its proper divisors (4235815).

427807013 is a wasteful number, since it uses less digits than its factorization.

427807013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4235814.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 427807013 is about 20683.4961503127. The cubic root of 427807013 is about 753.4989183397.

The spelling of 427807013 in words is "four hundred twenty-seven million, eight hundred seven thousand, thirteen".