3291528649 has 2 divisors, whose sum is σ = 3291528650. Its totient is φ = 3291528648.

The previous prime is 3291528619. The next prime is 3291528659. The reversal of 3291528649 is 9468251923.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2345658624 + 945870025 = 48432^2 + 30755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3291528649 is a prime.

It is not a weakly prime, because it can be changed into another prime (3291528619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1645764324 + 1645764325.

It is an arithmetic number, because the mean of its divisors is an integer number (1645764325).

Almost surely, 2^3291528649 is an apocalyptic number.

It is an amenable number.

3291528649 is a deficient number, since it is larger than the sum of its proper divisors (1).

3291528649 is an equidigital number, since it uses as much as digits as its factorization.

3291528649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 49.

The square root of 3291528649 is about 57371.8454383333. The cubic root of 3291528649 is about 1487.5305022486.

The spelling of 3291528649 in words is "three billion, two hundred ninety-one million, five hundred twenty-eight thousand, six hundred forty-nine".