4390969 has 8 divisors (see below), whose sum is σ = 4831200. Its totient is φ = 3990580.

The previous prime is 4390937. The next prime is 4391003. The reversal of 4390969 is 9690934.

It is not a de Polignac number, because 4390969 - 2⁵ = 4390937 is a prime.

It is a super-2 number, since 2×4390969² = 38561217517922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4390909) by changing a digit.

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, 319 + ... + 2980.

It is an arithmetic number, because the mean of its divisors is an integer number (603900).

Almost surely, 2^4390969 is an apocalyptic number.

It is an amenable number.

4390969 is a deficient number, since it is larger than the sum of its proper divisors (440231).

4390969 is an equidigital number, since it uses as much as digits as its factorization.

4390969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3332 (or 3310 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 4390969 is about 2095.4639104504. The cubic root of 4390969 is about 163.7520668698.

The spelling of 4390969 in words is "four million, three hundred ninety thousand, nine hundred sixty-nine".