4421979 has 16 divisors (see below), whose sum is σ = 6592000. Its totient is φ = 2929608.

The previous prime is 4421971. The next prime is 4421987. The reversal of 4421979 is 9791244.

It is an interprime number because it is at equal distance from previous prime (4421971) and next prime (4421987).

It is not a de Polignac number, because 4421979 - 2³ = 4421971 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (4421971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4962 + ... + 5784.

It is an arithmetic number, because the mean of its divisors is an integer number (412000).

Almost surely, 2^4421979 is an apocalyptic number.

4421979 is a deficient number, since it is larger than the sum of its proper divisors (2170021).

4421979 is a wasteful number, since it uses less digits than its factorization.

4421979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031 (or 1025 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 4421979 is about 2102.8502086454. The cubic root of 4421979 is about 164.1366474639.

The spelling of 4421979 in words is "four million, four hundred twenty-one thousand, nine hundred seventy-nine".