4707991 has 12 divisors (see below), whose sum is σ = 5121480. Its totient is φ = 4315680.

The previous prime is 4707979. The next prime is 4708013. The reversal of 4707991 is 1997074.

It is not a de Polignac number, because 4707991 - 2⁷ = 4707863 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

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 4707991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4707931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25921 + ... + 26101.

It is an arithmetic number, because the mean of its divisors is an integer number (426790).

Almost surely, 2^4707991 is an apocalyptic number.

4707991 is a deficient number, since it is larger than the sum of its proper divisors (413489).

4707991 is a wasteful number, since it uses less digits than its factorization.

4707991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 4707991 is about 2169.7905428866. The cubic root of 4707991 is about 167.6017470479.

The spelling of 4707991 in words is "four million, seven hundred seven thousand, nine hundred ninety-one".