2971828381 has 2 divisors, whose sum is σ = 2971828382. Its totient is φ = 2971828380.

The previous prime is 2971828373. The next prime is 2971828421. The reversal of 2971828381 is 1838281792.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1523340900 + 1448487481 = 39030^2 + 38059^2 .

It is a cyclic number.

It is not a de Polignac number, because 2971828381 - 2³ = 2971828373 is a prime.

It is a super-2 number, since 2×2971828381² = 17663527852234162322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2971828481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1485914190 + 1485914191.

It is an arithmetic number, because the mean of its divisors is an integer number (1485914191).

Almost surely, 2^2971828381 is an apocalyptic number.

It is an amenable number.

2971828381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2971828381 is an equidigital number, since it uses as much as digits as its factorization.

2971828381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 49.

The square root of 2971828381 is about 54514.4786364136. The cubic root of 2971828381 is about 1437.7208643220.

The spelling of 2971828381 in words is "two billion, nine hundred seventy-one million, eight hundred twenty-eight thousand, three hundred eighty-one".