3297278641 has 8 divisors (see below), whose sum is σ = 3338498664. Its totient is φ = 3256270080.

The previous prime is 3297278581. The next prime is 3297278659. The reversal of 3297278641 is 1468727923.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 765075600 + 2532203041 = 27660^2 + 50321^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3297278641 - 2¹⁵ = 3297245873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3297278041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21370 + ... + 83971.

It is an arithmetic number, because the mean of its divisors is an integer number (417312333).

Almost surely, 2^3297278641 is an apocalyptic number.

It is an amenable number.

3297278641 is a deficient number, since it is larger than the sum of its proper divisors (41220023).

3297278641 is a wasteful number, since it uses less digits than its factorization.

3297278641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105731.

The product of its digits is 1016064, while the sum is 49.

The square root of 3297278641 is about 57421.9351903086. The cubic root of 3297278641 is about 1488.3961904672.

The spelling of 3297278641 in words is "three billion, two hundred ninety-seven million, two hundred seventy-eight thousand, six hundred forty-one".