4278671 has 2 divisors, whose sum is σ = 4278672. Its totient is φ = 4278670.

The previous prime is 4278661. The next prime is 4278691. The reversal of 4278671 is 1768724.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4278671 - 2⁶ = 4278607 is a prime.

It is a d-powerful number, because it can be written as 4⁶ + 2²¹ + 7⁵ + 8⁷ + 6⁶ + 7⁵ + 1 .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4278641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2139335 + 2139336.

It is an arithmetic number, because the mean of its divisors is an integer number (2139336).

Almost surely, 2^4278671 is an apocalyptic number.

4278671 is a deficient number, since it is larger than the sum of its proper divisors (1).

4278671 is an equidigital number, since it uses as much as digits as its factorization.

4278671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18816, while the sum is 35.

The square root of 4278671 is about 2068.4948634212. The cubic root of 4278671 is about 162.3440207419.

The spelling of 4278671 in words is "four million, two hundred seventy-eight thousand, six hundred seventy-one".