4399745 has 8 divisors (see below), whose sum is σ = 6033984. Its totient is φ = 3016944.

The previous prime is 4399729. The next prime is 4399763. The reversal of 4399745 is 5479934.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4399745 - 2⁴ = 4399729 is a prime.

It is a d-powerful number, because it can be written as 4⁴ + 3¹⁰ + 9⁴ + 9⁵ + 7⁴ + 4¹¹ + 5⁷ .

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 62819 + ... + 62888.

It is an arithmetic number, because the mean of its divisors is an integer number (754248).

Almost surely, 2^4399745 is an apocalyptic number.

It is an amenable number.

4399745 is a deficient number, since it is larger than the sum of its proper divisors (1634239).

4399745 is a wasteful number, since it uses less digits than its factorization.

4399745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125719.

The product of its digits is 136080, while the sum is 41.

The square root of 4399745 is about 2097.5569122195. The cubic root of 4399745 is about 163.8610884995.

The spelling of 4399745 in words is "four million, three hundred ninety-nine thousand, seven hundred forty-five".