4798991 has 4 divisors (see below), whose sum is σ = 4889592. Its totient is φ = 4708392.

The previous prime is 4798987. The next prime is 4798993. The reversal of 4798991 is 1998974.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4798991 - 2² = 4798987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4798993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45221 + ... + 45326.

It is an arithmetic number, because the mean of its divisors is an integer number (1222398).

Almost surely, 2^4798991 is an apocalyptic number.

4798991 is a deficient number, since it is larger than the sum of its proper divisors (90601).

4798991 is an equidigital number, since it uses as much as digits as its factorization.

4798991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90600.

The product of its digits is 163296, while the sum is 47.

The square root of 4798991 is about 2190.6599462263. The cubic root of 4798991 is about 168.6747124604.

The spelling of 4798991 in words is "four million, seven hundred ninety-eight thousand, nine hundred ninety-one".