3921350827 has 4 divisors (see below), whose sum is σ = 3922108840. Its totient is φ = 3920592816.

The previous prime is 3921350791. The next prime is 3921350831. The reversal of 3921350827 is 7280531293.

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

It is a cyclic number.

It is not a de Polignac number, because 3921350827 - 2²⁷ = 3787133099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3921350827.

It is not an unprimeable number, because it can be changed into a prime (3921350837) 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, 371193 + ... + 381610.

It is an arithmetic number, because the mean of its divisors is an integer number (980527210).

Almost surely, 2^3921350827 is an apocalyptic number.

3921350827 is a deficient number, since it is larger than the sum of its proper divisors (758013).

3921350827 is an equidigital number, since it uses as much as digits as its factorization.

3921350827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758012.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 3921350827 is about 62620.6900872228. The cubic root of 3921350827 is about 1576.9281268265.

The spelling of 3921350827 in words is "three billion, nine hundred twenty-one million, three hundred fifty thousand, eight hundred twenty-seven".