4893921 has 6 divisors (see below), whose sum is σ = 7069010. Its totient is φ = 3262608.

The previous prime is 4893913. The next prime is 4893923. The reversal of 4893921 is 1293984.

It can be written as a sum of positive squares in only one way, i.e., 3111696 + 1782225 = 1764^2 + 1335^2 .

It is not a de Polignac number, because 4893921 - 2³ = 4893913 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4893923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 271876 + ... + 271893.

Almost surely, 2^4893921 is an apocalyptic number.

It is an amenable number.

4893921 is a deficient number, since it is larger than the sum of its proper divisors (2175089).

4893921 is a wasteful number, since it uses less digits than its factorization.

4893921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543775 (or 543772 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 4893921 is about 2212.2208298450. The cubic root of 4893921 is about 169.7796568586.

The spelling of 4893921 in words is "four million, eight hundred ninety-three thousand, nine hundred twenty-one".