4190965 has 4 divisors (see below), whose sum is σ = 5029164. Its totient is φ = 3352768.

The previous prime is 4190957. The next prime is 4190969. The reversal of 4190965 is 5690914.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5690914 = 2 ⋅2845457.

It can be written as a sum of positive squares in 2 ways, for example, as 3090564 + 1100401 = 1758^2 + 1049^2 .

It is a cyclic number.

It is not a de Polignac number, because 4190965 - 2³ = 4190957 is a prime.

It is an Ulam number.

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 4190965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4190969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419092 + ... + 419101.

It is an arithmetic number, because the mean of its divisors is an integer number (1257291).

Almost surely, 2^4190965 is an apocalyptic number.

It is an amenable number.

4190965 is a deficient number, since it is larger than the sum of its proper divisors (838199).

4190965 is an equidigital number, since it uses as much as digits as its factorization.

4190965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838198.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 4190965 is about 2047.1846521504. The cubic root of 4190965 is about 161.2270884660.

It can be divided in two parts, 4 and 190965, that added together give a square (190969 = 437²).

The spelling of 4190965 in words is "four million, one hundred ninety thousand, nine hundred sixty-five".