4894721 has 8 divisors (see below), whose sum is σ = 5384064. Its totient is φ = 4421520.

The previous prime is 4894711. The next prime is 4894753. The reversal of 4894721 is 1274984.

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 4894721 - 2¹⁸ = 4632577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4894711) 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, 3395 + ... + 4616.

It is an arithmetic number, because the mean of its divisors is an integer number (673008).

It is a Proth number, since it is equal to 1195 ⋅ 2¹² + 1 and 1195 < 2¹².

Almost surely, 2^4894721 is an apocalyptic number.

It is an amenable number.

4894721 is a deficient number, since it is larger than the sum of its proper divisors (489343).

4894721 is a wasteful number, since it uses less digits than its factorization.

4894721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8071.

The product of its digits is 16128, while the sum is 35.

The square root of 4894721 is about 2212.4016362315. The cubic root of 4894721 is about 169.7889075409.

The spelling of 4894721 in words is "four million, eight hundred ninety-four thousand, seven hundred twenty-one".