3645464623 has 8 divisors (see below), whose sum is σ = 3765384320. Its totient is φ = 3525690240.

The previous prime is 3645464593. The next prime is 3645464677. The reversal of 3645464623 is 3264645463.

It is a happy number.

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 3645464623 - 2¹³ = 3645456431 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3645464623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645464023) 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, 15883 + ... + 86851.

It is an arithmetic number, because the mean of its divisors is an integer number (470673040).

Almost surely, 2^3645464623 is an apocalyptic number.

3645464623 is a deficient number, since it is larger than the sum of its proper divisors (119919697).

3645464623 is a wasteful number, since it uses less digits than its factorization.

3645464623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72657.

The product of its digits is 1244160, while the sum is 43.

The square root of 3645464623 is about 60377.6831536289. The cubic root of 3645464623 is about 1539.0437396962.

The spelling of 3645464623 in words is "three billion, six hundred forty-five million, four hundred sixty-four thousand, six hundred twenty-three".