3982577257 has 4 divisors (see below), whose sum is σ = 3995301460. Its totient is φ = 3969853056.

The previous prime is 3982577237. The next prime is 3982577299. The reversal of 3982577257 is 7527752893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7527752893 = 193 ⋅39003901.

It can be written as a sum of positive squares in 2 ways, for example, as 2128069161 + 1854508096 = 46131^2 + 43064^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3982577257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3982577198 and 3982577207.

It is not an unprimeable number, because it can be changed into a prime (3982577237) 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, 6361632 + ... + 6362257.

It is an arithmetic number, because the mean of its divisors is an integer number (998825365).

Almost surely, 2^3982577257 is an apocalyptic number.

It is an amenable number.

3982577257 is a deficient number, since it is larger than the sum of its proper divisors (12724203).

3982577257 is a wasteful number, since it uses less digits than its factorization.

3982577257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12724202.

The product of its digits is 7408800, while the sum is 55.

The square root of 3982577257 is about 63107.6640115921. The cubic root of 3982577257 is about 1585.0929575590.

The spelling of 3982577257 in words is "three billion, nine hundred eighty-two million, five hundred seventy-seven thousand, two hundred fifty-seven".