4725891 has 16 divisors (see below), whose sum is σ = 7074720. Its totient is φ = 3117600.

The previous prime is 4725887. The next prime is 4725893. The reversal of 4725891 is 1985274.

4725891 is a `hidden beast` number, since 4 + 72 + 589 + 1 = 666.

It is not a de Polignac number, because 4725891 - 2² = 4725887 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4725893) 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, 1861 + ... + 3593.

It is an arithmetic number, because the mean of its divisors is an integer number (442170).

Almost surely, 2^4725891 is an apocalyptic number.

4725891 is a deficient number, since it is larger than the sum of its proper divisors (2348829).

4725891 is a wasteful number, since it uses less digits than its factorization.

4725891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843 (or 1837 counting only the distinct ones).

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

The square root of 4725891 is about 2173.9114517385. The cubic root of 4725891 is about 167.8138882879.

The spelling of 4725891 in words is "four million, seven hundred twenty-five thousand, eight hundred ninety-one".