3994536463 has 2 divisors, whose sum is σ = 3994536464. Its totient is φ = 3994536462.

The previous prime is 3994536443. The next prime is 3994536493. The reversal of 3994536463 is 3646354993.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3994536463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3994536463.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3994536433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1997268231 + 1997268232.

It is an arithmetic number, because the mean of its divisors is an integer number (1997268232).

Almost surely, 2^3994536463 is an apocalyptic number.

3994536463 is a deficient number, since it is larger than the sum of its proper divisors (1).

3994536463 is an equidigital number, since it uses as much as digits as its factorization.

3994536463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6298560, while the sum is 52.

The square root of 3994536463 is about 63202.3453916071. The cubic root of 3994536463 is about 1586.6779872956.

The spelling of 3994536463 in words is "three billion, nine hundred ninety-four million, five hundred thirty-six thousand, four hundred sixty-three".