4278697 has 2 divisors, whose sum is σ = 4278698. Its totient is φ = 4278696.

The previous prime is 4278691. The next prime is 4278709. The reversal of 4278697 is 7968724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4247721 + 30976 = 2061^2 + 176^2 .

It is a cyclic number.

It is not a de Polignac number, because 4278697 - 2¹⁵ = 4245929 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (4278691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2139348 + 2139349.

It is an arithmetic number, because the mean of its divisors is an integer number (2139349).

Almost surely, 2^4278697 is an apocalyptic number.

It is an amenable number.

4278697 is a deficient number, since it is larger than the sum of its proper divisors (1).

4278697 is an equidigital number, since it uses as much as digits as its factorization.

4278697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 43.

The square root of 4278697 is about 2068.5011481747. The cubic root of 4278697 is about 162.3443495774.

The spelling of 4278697 in words is "four million, two hundred seventy-eight thousand, six hundred ninety-seven".