4805991 has 6 divisors (see below), whose sum is σ = 6942000. Its totient is φ = 3203988.

The previous prime is 4805959. The next prime is 4806001. The reversal of 4805991 is 1995084.

It is not a de Polignac number, because 4805991 - 2⁵ = 4805959 is a prime.

It is a super-3 number, since 3×4805991³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4805191) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 266991 + ... + 267008.

It is an arithmetic number, because the mean of its divisors is an integer number (1157000).

Almost surely, 2^4805991 is an apocalyptic number.

4805991 is a deficient number, since it is larger than the sum of its proper divisors (2136009).

4805991 is a wasteful number, since it uses less digits than its factorization.

4805991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534005 (or 534002 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 4805991 is about 2192.2570560954. The cubic root of 4805991 is about 168.7566845089.

The spelling of 4805991 in words is "four million, eight hundred five thousand, nine hundred ninety-one".