4921489 has 8 divisors (see below), whose sum is σ = 5027400. Its totient is φ = 4816896.

The previous prime is 4921487. The next prime is 4921493. The reversal of 4921489 is 9841294.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 46225 + 4875264 = 215^2 + 2208^2 .

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 4921489 - 2¹ = 4921487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4921487) 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, 10737 + ... + 11185.

It is an arithmetic number, because the mean of its divisors is an integer number (628425).

Almost surely, 2^4921489 is an apocalyptic number.

It is an amenable number.

4921489 is a deficient number, since it is larger than the sum of its proper divisors (105911).

4921489 is a wasteful number, since it uses less digits than its factorization.

4921489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659.

The product of its digits is 20736, while the sum is 37.

The square root of 4921489 is about 2218.4429224120. The cubic root of 4921489 is about 170.0978560024.

The spelling of 4921489 in words is "four million, nine hundred twenty-one thousand, four hundred eighty-nine".