3213653365 has 8 divisors (see below), whose sum is σ = 4153029048. Its totient is φ = 2373159360.

The previous prime is 3213653353. The next prime is 3213653381. The reversal of 3213653365 is 5633563123.

It can be written as a sum of positive squares in 4 ways, for example, as 228342321 + 2985311044 = 15111^2 + 54638^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3213653365 - 2¹⁷ = 3213522293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24720346 + ... + 24720475.

It is an arithmetic number, because the mean of its divisors is an integer number (519128631).

Almost surely, 2^3213653365 is an apocalyptic number.

It is an amenable number.

3213653365 is a deficient number, since it is larger than the sum of its proper divisors (939375683).

3213653365 is a wasteful number, since it uses less digits than its factorization.

3213653365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49440839.

The product of its digits is 145800, while the sum is 37.

The square root of 3213653365 is about 56689.0938805693. The cubic root of 3213653365 is about 1475.7054352346.

The spelling of 3213653365 in words is "three billion, two hundred thirteen million, six hundred fifty-three thousand, three hundred sixty-five".