3290712728 has 32 divisors (see below), whose sum is σ = 6280200000. Its totient is φ = 1616042400.

The previous prime is 3290712727. The next prime is 3290712811. The reversal of 3290712728 is 8272170923.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3290712727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 705203 + ... + 709853.

It is an arithmetic number, because the mean of its divisors is an integer number (196256250).

Almost surely, 2^3290712728 is an apocalyptic number.

It is an amenable number.

3290712728 is a deficient number, since it is larger than the sum of its proper divisors (2989487272).

3290712728 is a wasteful number, since it uses less digits than its factorization.

3290712728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6215 (or 6211 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 3290712728 is about 57364.7341839915. The cubic root of 3290712728 is about 1487.4075798616.

The spelling of 3290712728 in words is "three billion, two hundred ninety million, seven hundred twelve thousand, seven hundred twenty-eight".