4990321 has 8 divisors (see below), whose sum is σ = 5811264. Its totient is φ = 4196400.

The previous prime is 4990313. The next prime is 4990327. The reversal of 4990321 is 1230994.

It is a happy number.

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 4990321 - 2³ = 4990313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4990321.

It is not an unprimeable number, because it can be changed into a prime (4990327) 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, 6355 + ... + 7096.

It is an arithmetic number, because the mean of its divisors is an integer number (726408).

Almost surely, 2^4990321 is an apocalyptic number.

It is an amenable number.

4990321 is a deficient number, since it is larger than the sum of its proper divisors (820943).

4990321 is a wasteful number, since it uses less digits than its factorization.

4990321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13511.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 4990321 is about 2233.9026388811. The cubic root of 4990321 is about 170.8871843450.

The spelling of 4990321 in words is "four million, nine hundred ninety thousand, three hundred twenty-one".