3906380813 has 2 divisors, whose sum is σ = 3906380814. Its totient is φ = 3906380812.

The previous prime is 3906380767. The next prime is 3906380837. The reversal of 3906380813 is 3180836093.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2209188004 + 1697192809 = 47002^2 + 41197^2 .

It is a cyclic number.

It is not a de Polignac number, because 3906380813 - 2¹² = 3906376717 is a prime.

It is a super-2 number, since 2×3906380813² = 30519622112349081938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3906380113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1953190406 + 1953190407.

It is an arithmetic number, because the mean of its divisors is an integer number (1953190407).

Almost surely, 2^3906380813 is an apocalyptic number.

It is an amenable number.

3906380813 is a deficient number, since it is larger than the sum of its proper divisors (1).

3906380813 is an equidigital number, since it uses as much as digits as its factorization.

3906380813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 3906380813 is about 62501.0464952388. The cubic root of 3906380813 is about 1574.9188923379.

The spelling of 3906380813 in words is "three billion, nine hundred six million, three hundred eighty thousand, eight hundred thirteen".