4439997 has 6 divisors (see below), whose sum is σ = 6413342. Its totient is φ = 2959992.

The previous prime is 4439993. The next prime is 4440001. The reversal of 4439997 is 7999344.

It is an interprime number because it is at equal distance from previous prime (4439993) and next prime (4440001).

It can be written as a sum of positive squares in only one way, i.e., 4435236 + 4761 = 2106^2 + 69^2 .

It is not a de Polignac number, because 4439997 - 2² = 4439993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4439993) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 246658 + ... + 246675.

Almost surely, 2^4439997 is an apocalyptic number.

It is an amenable number.

4439997 is a deficient number, since it is larger than the sum of its proper divisors (1973345).

4439997 is a wasteful number, since it uses less digits than its factorization.

4439997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493339 (or 493336 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 4439997 is about 2107.1300387019. The cubic root of 4439997 is about 164.3592782797.

It can be divided in two parts, 443 and 9997, that added together give a triangular number (10440 = T₁₄₄).

The spelling of 4439997 in words is "four million, four hundred thirty-nine thousand, nine hundred ninety-seven".