3945080317 has 4 divisors (see below), whose sum is σ = 3946694976. Its totient is φ = 3943465660.

The previous prime is 3945080309. The next prime is 3945080329. The reversal of 3945080317 is 7130805493.

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 3945080317 - 2³ = 3945080309 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 3945080317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3945080617) 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, 803659 + ... + 808552.

It is an arithmetic number, because the mean of its divisors is an integer number (986673744).

Almost surely, 2^3945080317 is an apocalyptic number.

It is an amenable number.

3945080317 is a deficient number, since it is larger than the sum of its proper divisors (1614659).

3945080317 is a wasteful number, since it uses less digits than its factorization.

3945080317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614658.

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

The square root of 3945080317 is about 62809.8743590528. The cubic root of 3945080317 is about 1580.1025833358.

The spelling of 3945080317 in words is "three billion, nine hundred forty-five million, eighty thousand, three hundred seventeen".