633713963 has 6 divisors (see below), whose sum is σ = 662465244. Its totient is φ = 606160676.

The previous prime is 633713959. The next prime is 633714013. The reversal of 633713963 is 369317336.

It is a happy number.

It is not a de Polignac number, because 633713963 - 2² = 633713959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 633713963.

It is not an unprimeable number, because it can be changed into a prime (633713923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 598445 + ... + 599502.

It is an arithmetic number, because the mean of its divisors is an integer number (110410874).

Almost surely, 2^633713963 is an apocalyptic number.

633713963 is a deficient number, since it is larger than the sum of its proper divisors (28751281).

633713963 is a wasteful number, since it uses less digits than its factorization.

633713963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197993 (or 1197970 counting only the distinct ones).

The product of its digits is 183708, while the sum is 41.

The square root of 633713963 is about 25173.6759929892. The cubic root of 633713963 is about 858.9431596126.

The spelling of 633713963 in words is "six hundred thirty-three million, seven hundred thirteen thousand, nine hundred sixty-three".