4684930921 has 16 divisors (see below), whose sum is σ = 5153843520. Its totient is φ = 4223263680.

The previous prime is 4684930891. The next prime is 4684930937. The reversal of 4684930921 is 1290394864.

It is a cyclic number.

It is not a de Polignac number, because 4684930921 - 2⁹ = 4684930409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4684930021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1890135 + ... + 1892611.

It is an arithmetic number, because the mean of its divisors is an integer number (322115220).

Almost surely, 2^4684930921 is an apocalyptic number.

It is an amenable number.

4684930921 is a deficient number, since it is larger than the sum of its proper divisors (468912599).

4684930921 is a wasteful number, since it uses less digits than its factorization.

4684930921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3864.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 4684930921 is about 68446.5552164607. Note that the first 3 decimals coincide. The cubic root of 4684930921 is about 1673.2765724632.

The spelling of 4684930921 in words is "four billion, six hundred eighty-four million, nine hundred thirty thousand, nine hundred twenty-one".