3645473817 has 8 divisors (see below), whose sum is σ = 5116454560. Its totient is φ = 2302404480.

The previous prime is 3645473813. The next prime is 3645473827. The reversal of 3645473817 is 7183745463.

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

It is not a de Polignac number, because 3645473817 - 2² = 3645473813 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3645473813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31977784 + ... + 31977897.

It is an arithmetic number, because the mean of its divisors is an integer number (639556820).

Almost surely, 2^3645473817 is an apocalyptic number.

It is an amenable number.

3645473817 is a deficient number, since it is larger than the sum of its proper divisors (1470980743).

3645473817 is a wasteful number, since it uses less digits than its factorization.

3645473817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63955703.

The product of its digits is 1693440, while the sum is 48.

The square root of 3645473817 is about 60377.7592909840. The cubic root of 3645473817 is about 1539.0450335373.

The spelling of 3645473817 in words is "three billion, six hundred forty-five million, four hundred seventy-three thousand, eight hundred seventeen".