3205401617 has 4 divisors (see below), whose sum is σ = 3496801776. Its totient is φ = 2914001460.

The previous prime is 3205401613. The next prime is 3205401659. The reversal of 3205401617 is 7161045023.

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.

It is a cyclic number.

It is not a de Polignac number, because 3205401617 - 2² = 3205401613 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 3205401617.

It is not an unprimeable number, because it can be changed into a prime (3205401611) 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, 145700063 + ... + 145700084.

It is an arithmetic number, because the mean of its divisors is an integer number (874200444).

Almost surely, 2^3205401617 is an apocalyptic number.

It is an amenable number.

3205401617 is a deficient number, since it is larger than the sum of its proper divisors (291400159).

3205401617 is a wasteful number, since it uses less digits than its factorization.

3205401617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291400158.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 3205401617 is about 56616.2663640053. The cubic root of 3205401617 is about 1474.4412886525.

The spelling of 3205401617 in words is "three billion, two hundred five million, four hundred one thousand, six hundred seventeen".