4792991 has 4 divisors (see below), whose sum is σ = 5477712. Its totient is φ = 4108272.

The previous prime is 4792987. The next prime is 4792999. The reversal of 4792991 is 1992974.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1992974 = 2 ⋅996487.

It is not a de Polignac number, because 4792991 - 2² = 4792987 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 (4792999) 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, 342350 + ... + 342363.

It is an arithmetic number, because the mean of its divisors is an integer number (1369428).

Almost surely, 2^4792991 is an apocalyptic number.

4792991 is a deficient number, since it is larger than the sum of its proper divisors (684721).

4792991 is an equidigital number, since it uses as much as digits as its factorization.

4792991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684720.

The product of its digits is 40824, while the sum is 41.

The square root of 4792991 is about 2189.2900675790. The cubic root of 4792991 is about 168.6043872369.

The spelling of 4792991 in words is "four million, seven hundred ninety-two thousand, nine hundred ninety-one".