3628438685 has 8 divisors (see below), whose sum is σ = 4455385440. Its totient is φ = 2835244944.

The previous prime is 3628438663. The next prime is 3628438687. The reversal of 3628438685 is 5868348263.

3628438685 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3628438685 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3628438687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8438015 + ... + 8438444.

It is an arithmetic number, because the mean of its divisors is an integer number (556923180).

Almost surely, 2^3628438685 is an apocalyptic number.

It is an amenable number.

3628438685 is a deficient number, since it is larger than the sum of its proper divisors (826946755).

3628438685 is a wasteful number, since it uses less digits than its factorization.

3628438685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16876507.

The product of its digits is 6635520, while the sum is 53.

The square root of 3628438685 is about 60236.5228495138. The cubic root of 3628438685 is about 1536.6439940368.

The spelling of 3628438685 in words is "three billion, six hundred twenty-eight million, four hundred thirty-eight thousand, six hundred eighty-five".