3890755663 has 2 divisors, whose sum is σ = 3890755664. Its totient is φ = 3890755662.

The previous prime is 3890755607. The next prime is 3890755667. The reversal of 3890755663 is 3665570983.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3890755663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3890755663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3890755667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1945377831 + 1945377832.

It is an arithmetic number, because the mean of its divisors is an integer number (1945377832).

Almost surely, 2^3890755663 is an apocalyptic number.

3890755663 is a deficient number, since it is larger than the sum of its proper divisors (1).

3890755663 is an equidigital number, since it uses as much as digits as its factorization.

3890755663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4082400, while the sum is 52.

The square root of 3890755663 is about 62375.9221414802. The cubic root of 3890755663 is about 1572.8162446821.

The spelling of 3890755663 in words is "three billion, eight hundred ninety million, seven hundred fifty-five thousand, six hundred sixty-three".