3647320023 has 4 divisors (see below), whose sum is σ = 4863093368. Its totient is φ = 2431546680.

The previous prime is 3647319883. The next prime is 3647320049. The reversal of 3647320023 is 3200237463.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3200237463 = 3 ⋅1066745821.

It is not a de Polignac number, because 3647320023 - 2¹² = 3647315927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3647321023) 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, 607886668 + ... + 607886673.

It is an arithmetic number, because the mean of its divisors is an integer number (1215773342).

Almost surely, 2^3647320023 is an apocalyptic number.

3647320023 is a deficient number, since it is larger than the sum of its proper divisors (1215773345).

3647320023 is a wasteful number, since it uses less digits than its factorization.

3647320023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215773344.

The product of its (nonzero) digits is 18144, while the sum is 30.

The square root of 3647320023 is about 60393.0461477147. The cubic root of 3647320023 is about 1539.3047999206.

Adding to 3647320023 its reverse (3200237463), we get a palindrome (6847557486).

The spelling of 3647320023 in words is "three billion, six hundred forty-seven million, three hundred twenty thousand, twenty-three".