4791691 has 4 divisors (see below), whose sum is σ = 4824000. Its totient is φ = 4759384.

The previous prime is 4791653. The next prime is 4791737. The reversal of 4791691 is 1961974.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4791691 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4791691.

It is not an unprimeable number, because it can be changed into a prime (4791491) 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, 15931 + ... + 16228.

It is an arithmetic number, because the mean of its divisors is an integer number (1206000).

Almost surely, 2^4791691 is an apocalyptic number.

4791691 is a deficient number, since it is larger than the sum of its proper divisors (32309).

4791691 is a wasteful number, since it uses less digits than its factorization.

4791691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32308.

The product of its digits is 13608, while the sum is 37.

The square root of 4791691 is about 2188.9931475452. The cubic root of 4791691 is about 168.5891423705.

The spelling of 4791691 in words is "four million, seven hundred ninety-one thousand, six hundred ninety-one".