3971105297 has 4 divisors (see below), whose sum is σ = 3991060800. Its totient is φ = 3951149796.

The previous prime is 3971105269. The next prime is 3971105309. The reversal of 3971105297 is 7925011793.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3971105297 - 2⁶ = 3971105233 is a prime.

It is a super-2 number, since 2×3971105297² = 31539354559722916418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3971102297) 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, 9977453 + ... + 9977850.

It is an arithmetic number, because the mean of its divisors is an integer number (997765200).

Almost surely, 2^3971105297 is an apocalyptic number.

It is an amenable number.

3971105297 is a deficient number, since it is larger than the sum of its proper divisors (19955503).

3971105297 is a wasteful number, since it uses less digits than its factorization.

3971105297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19955502.

The product of its (nonzero) digits is 119070, while the sum is 44.

The square root of 3971105297 is about 63016.7064912155. The cubic root of 3971105297 is about 1583.5695210305.

The spelling of 3971105297 in words is "three billion, nine hundred seventy-one million, one hundred five thousand, two hundred ninety-seven".