3406375649 has 4 divisors (see below), whose sum is σ = 3406582164. Its totient is φ = 3406169136.

The previous prime is 3406375639. The next prime is 3406375669. The reversal of 3406375649 is 9465736043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9465736043 = 23 ⋅411553741.

It can be written as a sum of positive squares in 2 ways, for example, as 3370615249 + 35760400 = 58057^2 + 5980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3406375649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3406375639) 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, 76142 + ... + 112295.

It is an arithmetic number, because the mean of its divisors is an integer number (851645541).

Almost surely, 2^3406375649 is an apocalyptic number.

It is an amenable number.

3406375649 is a deficient number, since it is larger than the sum of its proper divisors (206515).

3406375649 is a wasteful number, since it uses less digits than its factorization.

3406375649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206514.

The product of its (nonzero) digits is 1632960, while the sum is 47.

The square root of 3406375649 is about 58364.1640820804. The cubic root of 3406375649 is about 1504.6339141148.

The spelling of 3406375649 in words is "three billion, four hundred six million, three hundred seventy-five thousand, six hundred forty-nine".