4920891 has 8 divisors (see below), whose sum is σ = 6685200. Its totient is φ = 3218592.

The previous prime is 4920887. The next prime is 4920901. The reversal of 4920891 is 1980294.

4920891 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 4920891 - 2² = 4920887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4920841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15316 + ... + 15633.

It is an arithmetic number, because the mean of its divisors is an integer number (835650).

Almost surely, 2^4920891 is an apocalyptic number.

4920891 is a deficient number, since it is larger than the sum of its proper divisors (1764309).

4920891 is a wasteful number, since it uses less digits than its factorization.

4920891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31005.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 4920891 is about 2218.3081391006. The cubic root of 4920891 is about 170.0909663098.

The spelling of 4920891 in words is "four million, nine hundred twenty thousand, eight hundred ninety-one".