3927901697 has 4 divisors (see below), whose sum is σ = 4158954756. Its totient is φ = 3696848640.

The previous prime is 3927901687. The next prime is 3927901727. The reversal of 3927901697 is 7961097293.

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 1183084816 + 2744816881 = 34396^2 + 52391^2 .

It is a cyclic number.

It is not a de Polignac number, because 3927901697 - 2⁸ = 3927901441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3927901687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115526504 + ... + 115526537.

It is an arithmetic number, because the mean of its divisors is an integer number (1039738689).

Almost surely, 2^3927901697 is an apocalyptic number.

It is an amenable number.

3927901697 is a deficient number, since it is larger than the sum of its proper divisors (231053059).

3927901697 is a wasteful number, since it uses less digits than its factorization.

3927901697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231053058.

The product of its (nonzero) digits is 1285956, while the sum is 53.

The square root of 3927901697 is about 62672.9742153665. The cubic root of 3927901697 is about 1577.8057584128.

The spelling of 3927901697 in words is "three billion, nine hundred twenty-seven million, nine hundred one thousand, six hundred ninety-seven".