4120691 has 4 divisors (see below), whose sum is σ = 4126584. Its totient is φ = 4114800.

The previous prime is 4120679. The next prime is 4120709. The reversal of 4120691 is 1960214.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1960214 = 2 ⋅980107.

It is a cyclic number.

It is not a de Polignac number, because 4120691 - 2¹⁰ = 4119667 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 (4120621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1730 + ... + 3351.

It is an arithmetic number, because the mean of its divisors is an integer number (1031646).

Almost surely, 2^4120691 is an apocalyptic number.

4120691 is a deficient number, since it is larger than the sum of its proper divisors (5893).

4120691 is an equidigital number, since it uses as much as digits as its factorization.

4120691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5892.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 4120691 is about 2029.9485215148. The cubic root of 4120691 is about 160.3208535470.

The spelling of 4120691 in words is "four million, one hundred twenty thousand, six hundred ninety-one".