3397065221 has 4 divisors (see below), whose sum is σ = 3705889344. Its totient is φ = 3088241100.

The previous prime is 3397065197. The next prime is 3397065229. The reversal of 3397065221 is 1225607933.

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 a de Polignac number, because none of the positive numbers 2^k-3397065221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3397065229) 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, 154412045 + ... + 154412066.

It is an arithmetic number, because the mean of its divisors is an integer number (926472336).

Almost surely, 2^3397065221 is an apocalyptic number.

It is an amenable number.

3397065221 is a deficient number, since it is larger than the sum of its proper divisors (308824123).

3397065221 is a wasteful number, since it uses less digits than its factorization.

3397065221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308824122.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 3397065221 is about 58284.3479932649. The cubic root of 3397065221 is about 1503.2618234933.

The spelling of 3397065221 in words is "three billion, three hundred ninety-seven million, sixty-five thousand, two hundred twenty-one".