4781905 has 8 divisors (see below), whose sum is σ = 5923584. Its totient is φ = 3702000.

The previous prime is 4781873. The next prime is 4781911. The reversal of 4781905 is 5091874.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4781905 - 2⁵ = 4781873 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15271 + ... + 15580.

It is an arithmetic number, because the mean of its divisors is an integer number (740448).

Almost surely, 2^4781905 is an apocalyptic number.

It is an amenable number.

4781905 is a deficient number, since it is larger than the sum of its proper divisors (1141679).

4781905 is a wasteful number, since it uses less digits than its factorization.

4781905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30887.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 4781905 is about 2186.7567308688. The cubic root of 4781905 is about 168.4742951100.

The spelling of 4781905 in words is "four million, seven hundred eighty-one thousand, nine hundred five".