3686463739 has 4 divisors (see below), whose sum is σ = 4213101424. Its totient is φ = 3159826056.

The previous prime is 3686463721. The next prime is 3686463751. The reversal of 3686463739 is 9373646863.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3686463739 - 2⁹ = 3686463227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3686463739.

It is not an unprimeable number, because it can be changed into a prime (3686463779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263318832 + ... + 263318845.

It is an arithmetic number, because the mean of its divisors is an integer number (1053275356).

Almost surely, 2^3686463739 is an apocalyptic number.

3686463739 is a deficient number, since it is larger than the sum of its proper divisors (526637685).

3686463739 is an equidigital number, since it uses as much as digits as its factorization.

3686463739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526637684.

The product of its digits is 11757312, while the sum is 55.

The square root of 3686463739 is about 60716.2559698801. The cubic root of 3686463739 is about 1544.7919185769.

The spelling of 3686463739 in words is "three billion, six hundred eighty-six million, four hundred sixty-three thousand, seven hundred thirty-nine".