4399957 has 8 divisors (see below), whose sum is σ = 4729536. Its totient is φ = 4078272.

The previous prime is 4399943. The next prime is 4399961. The reversal of 4399957 is 7599934.

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

It is a cyclic number.

It is not a de Polignac number, because 4399957 - 2¹¹ = 4397909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4399907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 793 + ... + 3070.

It is an arithmetic number, because the mean of its divisors is an integer number (591192).

Almost surely, 2^4399957 is an apocalyptic number.

It is an amenable number.

4399957 is a deficient number, since it is larger than the sum of its proper divisors (329579).

4399957 is a wasteful number, since it uses less digits than its factorization.

4399957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3947.

The product of its digits is 306180, while the sum is 46.

The square root of 4399957 is about 2097.6074465924. The cubic root of 4399957 is about 163.8637203182.

It can be divided in two parts, 4399 and 957, that added together give a triangular number (5356 = T₁₀₃).

The spelling of 4399957 in words is "four million, three hundred ninety-nine thousand, nine hundred fifty-seven".