4148989 has 8 divisors (see below), whose sum is σ = 4484480. Its totient is φ = 3815856.

The previous prime is 4148987. The next prime is 4149007. The reversal of 4148989 is 9898414.

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 4148989 - 2¹ = 4148987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4148983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5344 + ... + 6070.

It is an arithmetic number, because the mean of its divisors is an integer number (560560).

Almost surely, 2^4148989 is an apocalyptic number.

It is an amenable number.

4148989 is a deficient number, since it is larger than the sum of its proper divisors (335491).

4148989 is a wasteful number, since it uses less digits than its factorization.

4148989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179.

The product of its digits is 82944, while the sum is 43.

The square root of 4148989 is about 2036.9067234412. The cubic root of 4148989 is about 160.6870068504.

The spelling of 4148989 in words is "four million, one hundred forty-eight thousand, nine hundred eighty-nine".