4197785 has 8 divisors (see below), whose sum is σ = 5160456. Its totient is φ = 3276160.

The previous prime is 4197769. The next prime is 4197797. The reversal of 4197785 is 5877914.

It can be written as a sum of positive squares in 4 ways, for example, as 153664 + 4044121 = 392^2 + 2011^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4197785 - 2⁴ = 4197769 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10034 + ... + 10443.

It is an arithmetic number, because the mean of its divisors is an integer number (645057).

Almost surely, 2^4197785 is an apocalyptic number.

It is an amenable number.

4197785 is a deficient number, since it is larger than the sum of its proper divisors (962671).

4197785 is a wasteful number, since it uses less digits than its factorization.

4197785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20523.

The product of its digits is 70560, while the sum is 41.

The square root of 4197785 is about 2048.8496772579. The cubic root of 4197785 is about 161.3144965638.

The spelling of 4197785 in words is "four million, one hundred ninety-seven thousand, seven hundred eighty-five".