3891316201 has 4 divisors (see below), whose sum is σ = 4120217172. Its totient is φ = 3662415232.

The previous prime is 3891316189. The next prime is 3891316237. The reversal of 3891316201 is 1026131983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1026131983 = 14951 ⋅68633.

It can be written as a sum of positive squares in 2 ways, for example, as 2611107801 + 1280208400 = 51099^2 + 35780^2 .

It is a cyclic number.

It is not a de Polignac number, because 3891316201 - 2¹⁵ = 3891283433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3891316291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114450460 + ... + 114450493.

It is an arithmetic number, because the mean of its divisors is an integer number (1030054293).

Almost surely, 2^3891316201 is an apocalyptic number.

It is an amenable number.

3891316201 is a deficient number, since it is larger than the sum of its proper divisors (228900971).

3891316201 is a wasteful number, since it uses less digits than its factorization.

3891316201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228900970.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 3891316201 is about 62380.4152038122. The cubic root of 3891316201 is about 1572.8917725070.

The spelling of 3891316201 in words is "three billion, eight hundred ninety-one million, three hundred sixteen thousand, two hundred one".