3645098939 has 4 divisors (see below), whose sum is σ = 3663985656. Its totient is φ = 3626212224.

The previous prime is 3645098929. The next prime is 3645099019. The reversal of 3645098939 is 9398905463.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9398905463 = 6361 ⋅1477583.

It is a cyclic number.

It is not a de Polignac number, because 3645098939 - 2⁴ = 3645098923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3645098929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9443069 + ... + 9443454.

It is an arithmetic number, because the mean of its divisors is an integer number (915996414).

Almost surely, 2^3645098939 is an apocalyptic number.

3645098939 is a deficient number, since it is larger than the sum of its proper divisors (18886717).

3645098939 is a wasteful number, since it uses less digits than its factorization.

3645098939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18886716.

The product of its (nonzero) digits is 6298560, while the sum is 56.

The square root of 3645098939 is about 60374.6547733401. The cubic root of 3645098939 is about 1538.9922764353.

The spelling of 3645098939 in words is "three billion, six hundred forty-five million, ninety-eight thousand, nine hundred thirty-nine".