3726187321 has 8 divisors (see below), whose sum is σ = 3848386304. Its totient is φ = 3604113360.

The previous prime is 3726187277. The next prime is 3726187327. The reversal of 3726187321 is 1237816273.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3726187321 - 2²⁹ = 3189316409 is a prime.

It is a super-4 number, since 4×3726187321⁴ (a number of 39 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3726187327) 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, 31351 + ... + 91843.

It is an arithmetic number, because the mean of its divisors is an integer number (481048288).

Almost surely, 2^3726187321 is an apocalyptic number.

3726187321 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3726187321 is a deficient number, since it is larger than the sum of its proper divisors (122198983).

3726187321 is a wasteful number, since it uses less digits than its factorization.

3726187321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62511.

The product of its digits is 84672, while the sum is 40.

The square root of 3726187321 is about 61042.5042163245. The cubic root of 3726187321 is about 1550.3207551241.

The spelling of 3726187321 in words is "three billion, seven hundred twenty-six million, one hundred eighty-seven thousand, three hundred twenty-one".