4785921 has 12 divisors (see below), whose sum is σ = 7900672. Its totient is φ = 2734776.

The previous prime is 4785901. The next prime is 4785931. The reversal of 4785921 is 1295874.

It is not a de Polignac number, because 4785921 - 2⁷ = 4785793 is a prime.

It is a Duffinian number.

4785921 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4785901) 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 11 ways as a sum of consecutive naturals, for example, 37921 + ... + 38046.

Almost surely, 2^4785921 is an apocalyptic number.

It is an amenable number.

4785921 is a deficient number, since it is larger than the sum of its proper divisors (3114751).

4785921 is a wasteful number, since it uses less digits than its factorization.

4785921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75980 (or 75977 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 4785921 is about 2187.6747930165. The cubic root of 4785921 is about 168.5214453182.

The spelling of 4785921 in words is "four million, seven hundred eighty-five thousand, nine hundred twenty-one".