4197791 has 12 divisors (see below), whose sum is σ = 4633560. Its totient is φ = 3800160.

The previous prime is 4197769. The next prime is 4197797. The reversal of 4197791 is 1977914.

It is a de Polignac number, because none of the positive numbers 2^k-4197791 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 (4197797) 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, 9761 + ... + 10181.

It is an arithmetic number, because the mean of its divisors is an integer number (386130).

Almost surely, 2^4197791 is an apocalyptic number.

4197791 is a deficient number, since it is larger than the sum of its proper divisors (435769).

4197791 is a wasteful number, since it uses less digits than its factorization.

4197791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506 (or 493 counting only the distinct ones).

The product of its digits is 15876, while the sum is 38.

The square root of 4197791 is about 2048.8511414937. The cubic root of 4197791 is about 161.3145734207.

Subtracting from 4197791 its sum of digits (38), we obtain a triangular number (4197753 = T₂₈₉₇).

The spelling of 4197791 in words is "four million, one hundred ninety-seven thousand, seven hundred ninety-one".