3906660613 has 2 divisors, whose sum is σ = 3906660614. Its totient is φ = 3906660612.

The previous prime is 3906660587. The next prime is 3906660697. The reversal of 3906660613 is 3160666093.

3906660613 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2418475684 + 1488184929 = 49178^2 + 38577^2 .

It is a cyclic number.

It is not a de Polignac number, because 3906660613 - 2²¹ = 3904563461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3906660313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1953330306 + 1953330307.

It is an arithmetic number, because the mean of its divisors is an integer number (1953330307).

Almost surely, 2^3906660613 is an apocalyptic number.

It is an amenable number.

3906660613 is a deficient number, since it is larger than the sum of its proper divisors (1).

3906660613 is an equidigital number, since it uses as much as digits as its factorization.

3906660613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 40.

The square root of 3906660613 is about 62503.2848176798. The cubic root of 3906660613 is about 1574.9564933644.

The spelling of 3906660613 in words is "three billion, nine hundred six million, six hundred sixty thousand, six hundred thirteen".