3684782289 has 4 divisors (see below), whose sum is σ = 4913043056. Its totient is φ = 2456521524.

The previous prime is 3684782221. The next prime is 3684782291. The reversal of 3684782289 is 9822874863.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9822874863 = 3 ⋅3274291621.

It is not a de Polignac number, because 3684782289 - 2⁷ = 3684782161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3684782209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 614130379 + ... + 614130384.

It is an arithmetic number, because the mean of its divisors is an integer number (1228260764).

Almost surely, 2^3684782289 is an apocalyptic number.

It is an amenable number.

3684782289 is a deficient number, since it is larger than the sum of its proper divisors (1228260767).

3684782289 is a wasteful number, since it uses less digits than its factorization.

3684782289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228260766.

The product of its digits is 9289728, while the sum is 57.

The square root of 3684782289 is about 60702.4076046412. The cubic root of 3684782289 is about 1544.5570154671.

The spelling of 3684782289 in words is "three billion, six hundred eighty-four million, seven hundred eighty-two thousand, two hundred eighty-nine".