4278613 has 2 divisors, whose sum is σ = 4278614. Its totient is φ = 4278612.

The previous prime is 4278607. The next prime is 4278619. The reversal of 4278613 is 3168724.

It is a balanced prime because it is at equal distance from previous prime (4278607) and next prime (4278619).

It can be written as a sum of positive squares in only one way, i.e., 3073009 + 1205604 = 1753^2 + 1098^2 .

It is a cyclic number.

It is not a de Polignac number, because 4278613 - 2²¹ = 2181461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4278619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2139306 + 2139307.

It is an arithmetic number, because the mean of its divisors is an integer number (2139307).

Almost surely, 2^4278613 is an apocalyptic number.

It is an amenable number.

4278613 is a deficient number, since it is larger than the sum of its proper divisors (1).

4278613 is an equidigital number, since it uses as much as digits as its factorization.

4278613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 31.

The square root of 4278613 is about 2068.4808435178. The cubic root of 4278613 is about 162.3432871811.

The spelling of 4278613 in words is "four million, two hundred seventy-eight thousand, six hundred thirteen".