3645673747 has 8 divisors (see below), whose sum is σ = 3703027856. Its totient is φ = 3588406272.

The previous prime is 3645673739. The next prime is 3645673753. The reversal of 3645673747 is 7473765463.

3645673747 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 not a de Polignac number, because 3645673747 - 2³ = 3645673739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3645673694 and 3645673703.

It is not an unprimeable number, because it can be changed into a prime (3645673147) 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, 65923 + ... + 107875.

It is an arithmetic number, because the mean of its divisors is an integer number (462878482).

Almost surely, 2^3645673747 is an apocalyptic number.

3645673747 is a deficient number, since it is larger than the sum of its proper divisors (57354109).

3645673747 is a wasteful number, since it uses less digits than its factorization.

3645673747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43317.

The product of its digits is 8890560, while the sum is 52.

The square root of 3645673747 is about 60379.4149276059. The cubic root of 3645673747 is about 1539.0731684853.

The spelling of 3645673747 in words is "three billion, six hundred forty-five million, six hundred seventy-three thousand, seven hundred forty-seven".