4478913 has 12 divisors (see below), whose sum is σ = 6531408. Its totient is φ = 2957400.

The previous prime is 4478899. The next prime is 4478917. The reversal of 4478913 is 3198744.

It is a happy number.

It is not a de Polignac number, because 4478913 - 2⁸ = 4478657 is a prime.

4478913 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4478917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1363 + ... + 3288.

It is an arithmetic number, because the mean of its divisors is an integer number (544284).

Almost surely, 2^4478913 is an apocalyptic number.

It is an amenable number.

4478913 is a deficient number, since it is larger than the sum of its proper divisors (2052495).

4478913 is a wasteful number, since it uses less digits than its factorization.

4478913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4764 (or 4761 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 4478913 is about 2116.3442536601. The cubic root of 4478913 is about 164.8380780653.

The spelling of 4478913 in words is "four million, four hundred seventy-eight thousand, nine hundred thirteen".