3731409321 has 8 divisors (see below), whose sum is σ = 4975495200. Its totient is φ = 2487464832.

The previous prime is 3731409313. The next prime is 3731409343. The reversal of 3731409321 is 1239041373.

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

It is not a de Polignac number, because 3731409321 - 2³ = 3731409313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3730409321) 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 7 ways as a sum of consecutive naturals, for example, 80130 + ... + 117828.

It is an arithmetic number, because the mean of its divisors is an integer number (621936900).

Almost surely, 2^3731409321 is an apocalyptic number.

It is an amenable number.

3731409321 is a deficient number, since it is larger than the sum of its proper divisors (1244085879).

3731409321 is a wasteful number, since it uses less digits than its factorization.

3731409321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70695.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 3731409321 is about 61085.2627153228. The cubic root of 3731409321 is about 1551.0446403660.

The spelling of 3731409321 in words is "three billion, seven hundred thirty-one million, four hundred nine thousand, three hundred twenty-one".