3261790921 has 16 divisors (see below), whose sum is σ = 3399589440. Its totient is φ = 3125778880.

The previous prime is 3261790913. The next prime is 3261790943. The reversal of 3261790921 is 1290971623.

It is a cyclic number.

It is not a de Polignac number, because 3261790921 - 2³ = 3261790913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3261790621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3073731 + ... + 3074791.

It is an arithmetic number, because the mean of its divisors is an integer number (212474340).

Almost surely, 2^3261790921 is an apocalyptic number.

It is an amenable number.

3261790921 is a deficient number, since it is larger than the sum of its proper divisors (137798519).

3261790921 is a wasteful number, since it uses less digits than its factorization.

3261790921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 3261790921 is about 57112.0908477356. The cubic root of 3261790921 is about 1483.0371829030.

The spelling of 3261790921 in words is "three billion, two hundred sixty-one million, seven hundred ninety thousand, nine hundred twenty-one".