4278913 has 4 divisors (see below), whose sum is σ = 4305328. Its totient is φ = 4252500.

The previous prime is 4278893. The next prime is 4278931. The reversal of 4278913 is 3198724.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4278913 - 2⁵ = 4278881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4278013) 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 in 3 ways as a sum of consecutive naturals, for example, 12963 + ... + 13288.

It is an arithmetic number, because the mean of its divisors is an integer number (1076332).

Almost surely, 2^4278913 is an apocalyptic number.

It is an amenable number.

4278913 is a deficient number, since it is larger than the sum of its proper divisors (26415).

4278913 is a wasteful number, since it uses less digits than its factorization.

4278913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26414.

The product of its digits is 12096, while the sum is 34.

The square root of 4278913 is about 2068.5533592344. The cubic root of 4278913 is about 162.3470813895.

The spelling of 4278913 in words is "four million, two hundred seventy-eight thousand, nine hundred thirteen".