4478791 has 4 divisors (see below), whose sum is σ = 4509000. Its totient is φ = 4448584.

The previous prime is 4478783. The next prime is 4478801. The reversal of 4478791 is 1978744.

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

It is a cyclic number.

It is not a de Polignac number, because 4478791 - 2³ = 4478783 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4478741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14881 + ... + 15178.

It is an arithmetic number, because the mean of its divisors is an integer number (1127250).

Almost surely, 2^4478791 is an apocalyptic number.

4478791 is a deficient number, since it is larger than the sum of its proper divisors (30209).

4478791 is a wasteful number, since it uses less digits than its factorization.

4478791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30208.

The product of its digits is 56448, while the sum is 40.

The square root of 4478791 is about 2116.3154301758. The cubic root of 4478791 is about 164.8365813905.

The spelling of 4478791 in words is "four million, four hundred seventy-eight thousand, seven hundred ninety-one".