3935978863 has 2 divisors, whose sum is σ = 3935978864. Its totient is φ = 3935978862.

The previous prime is 3935978831. The next prime is 3935978869. The reversal of 3935978863 is 3688795393.

It is a strong prime.

It is an emirp because it is prime and its reverse (3688795393) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3935978863 - 2⁵ = 3935978831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3935978869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1967989431 + 1967989432.

It is an arithmetic number, because the mean of its divisors is an integer number (1967989432).

Almost surely, 2^3935978863 is an apocalyptic number.

3935978863 is a deficient number, since it is larger than the sum of its proper divisors (1).

3935978863 is an equidigital number, since it uses as much as digits as its factorization.

3935978863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29393280, while the sum is 61.

The square root of 3935978863 is about 62737.3801094690. The cubic root of 3935978863 is about 1578.8865282857.

The spelling of 3935978863 in words is "three billion, nine hundred thirty-five million, nine hundred seventy-eight thousand, eight hundred sixty-three".