3982013261 has 2 divisors, whose sum is σ = 3982013262. Its totient is φ = 3982013260.

The previous prime is 3982013257. The next prime is 3982013263. The reversal of 3982013261 is 1623102893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2982252100 + 999761161 = 54610^2 + 31619^2 .

It is a cyclic number.

It is not a de Polignac number, because 3982013261 - 2² = 3982013257 is a prime.

It is a super-2 number, since 2×3982013261² = 31712859221559708242, which contains 22 as substring.

Together with 3982013263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3982013263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1991006630 + 1991006631.

It is an arithmetic number, because the mean of its divisors is an integer number (1991006631).

Almost surely, 2^3982013261 is an apocalyptic number.

It is an amenable number.

3982013261 is a deficient number, since it is larger than the sum of its proper divisors (1).

3982013261 is an equidigital number, since it uses as much as digits as its factorization.

3982013261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 3982013261 is about 63103.1953311399. The cubic root of 3982013261 is about 1585.0181292728.

The spelling of 3982013261 in words is "three billion, nine hundred eighty-two million, thirteen thousand, two hundred sixty-one".