3975399563 has 2 divisors, whose sum is σ = 3975399564. Its totient is φ = 3975399562.

The previous prime is 3975399523. The next prime is 3975399587. The reversal of 3975399563 is 3659935793.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3975399563 - 2¹² = 3975395467 is a prime.

It is not a weakly prime, because it can be changed into another prime (3975399503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1987699781 + 1987699782.

It is an arithmetic number, because the mean of its divisors is an integer number (1987699782).

Almost surely, 2^3975399563 is an apocalyptic number.

3975399563 is a deficient number, since it is larger than the sum of its proper divisors (1).

3975399563 is an equidigital number, since it uses as much as digits as its factorization.

3975399563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20667150, while the sum is 59.

The square root of 3975399563 is about 63050.7697256742. The cubic root of 3975399563 is about 1584.1401278260.

The spelling of 3975399563 in words is "three billion, nine hundred seventy-five million, three hundred ninety-nine thousand, five hundred sixty-three".