631364963 has 4 divisors (see below), whose sum is σ = 631415280. Its totient is φ = 631314648.

The previous prime is 631364939. The next prime is 631364977. The reversal of 631364963 is 369463136.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 631364963 - 2¹⁴ = 631348579 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 631364963.

It is not an unprimeable number, because it can be changed into a prime (631364933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10706 + ... + 37112.

It is an arithmetic number, because the mean of its divisors is an integer number (157853820).

Almost surely, 2^631364963 is an apocalyptic number.

631364963 is a deficient number, since it is larger than the sum of its proper divisors (50317).

631364963 is a wasteful number, since it uses less digits than its factorization.

631364963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50316.

The product of its digits is 209952, while the sum is 41.

The square root of 631364963 is about 25126.9767978561. The cubic root of 631364963 is about 857.8805584445.

The spelling of 631364963 in words is "six hundred thirty-one million, three hundred sixty-four thousand, nine hundred sixty-three".