3199173649 has 4 divisors (see below), whose sum is σ = 3656198464. Its totient is φ = 2742148836.

The previous prime is 3199173631. The next prime is 3199173667. The reversal of 3199173649 is 9463719913.

3199173649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9463719913 = 2269 ⋅4170877.

It is an interprime number because it is at equal distance from previous prime (3199173631) and next prime (3199173667).

It is not a de Polignac number, because 3199173649 - 2⁵ = 3199173617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3199173596 and 3199173605.

It is not an unprimeable number, because it can be changed into a prime (3199173149) 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, 228512397 + ... + 228512410.

It is an arithmetic number, because the mean of its divisors is an integer number (914049616).

Almost surely, 2^3199173649 is an apocalyptic number.

It is an amenable number.

3199173649 is a deficient number, since it is larger than the sum of its proper divisors (457024815).

3199173649 is an equidigital number, since it uses as much as digits as its factorization.

3199173649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457024814.

The product of its digits is 1102248, while the sum is 52.

The square root of 3199173649 is about 56561.2380433809. The cubic root of 3199173649 is about 1473.4857425729.

The spelling of 3199173649 in words is "three billion, one hundred ninety-nine million, one hundred seventy-three thousand, six hundred forty-nine".