3691435243 has 4 divisors (see below), whose sum is σ = 3691935000. Its totient is φ = 3690935488.

The previous prime is 3691435229. The next prime is 3691435247. The reversal of 3691435243 is 3425341963.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3425341963 = 71 ⋅48244253.

It is a cyclic number.

It is not a de Polignac number, because 3691435243 - 2¹⁷ = 3691304171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3691435196 and 3691435205.

It is not an unprimeable number, because it can be changed into a prime (3691435247) 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, 238630 + ... + 253627.

It is an arithmetic number, because the mean of its divisors is an integer number (922983750).

Almost surely, 2^3691435243 is an apocalyptic number.

3691435243 is a deficient number, since it is larger than the sum of its proper divisors (499757).

3691435243 is an equidigital number, since it uses as much as digits as its factorization.

3691435243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499756.

The product of its digits is 233280, while the sum is 40.

The square root of 3691435243 is about 60757.1826453466. The cubic root of 3691435243 is about 1545.4860335865.

The spelling of 3691435243 in words is "three billion, six hundred ninety-one million, four hundred thirty-five thousand, two hundred forty-three".