3291925421 has 4 divisors (see below), whose sum is σ = 3324518844. Its totient is φ = 3259332000.

The previous prime is 3291925381. The next prime is 3291925447. The reversal of 3291925421 is 1245291923.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2912221225 + 379704196 = 53965^2 + 19486^2 .

It is a cyclic number.

It is not a de Polignac number, because 3291925421 - 2¹⁴ = 3291909037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3291925121) 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 3 ways as a sum of consecutive naturals, for example, 16296560 + ... + 16296761.

It is an arithmetic number, because the mean of its divisors is an integer number (831129711).

Almost surely, 2^3291925421 is an apocalyptic number.

It is an amenable number.

3291925421 is a deficient number, since it is larger than the sum of its proper divisors (32593423).

3291925421 is a wasteful number, since it uses less digits than its factorization.

3291925421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32593422.

The product of its digits is 38880, while the sum is 38.

The square root of 3291925421 is about 57375.3032323142. The cubic root of 3291925421 is about 1487.5902705004.

The spelling of 3291925421 in words is "three billion, two hundred ninety-one million, nine hundred twenty-five thousand, four hundred twenty-one".