631434463 has 4 divisors (see below), whose sum is σ = 688837608. Its totient is φ = 574031320.

The previous prime is 631434457. The next prime is 631434469. The reversal of 631434463 is 364434136.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (631434457) and next prime (631434469).

It is a cyclic number.

It is not a de Polignac number, because 631434463 - 2⁹ = 631433951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631434469) 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, 28701556 + ... + 28701577.

It is an arithmetic number, because the mean of its divisors is an integer number (172209402).

Almost surely, 2^631434463 is an apocalyptic number.

631434463 is a deficient number, since it is larger than the sum of its proper divisors (57403145).

631434463 is a wasteful number, since it uses less digits than its factorization.

631434463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57403144.

The product of its digits is 62208, while the sum is 34.

The square root of 631434463 is about 25128.3597355657. The cubic root of 631434463 is about 857.9120354901.

Adding to 631434463 its reverse (364434136), we get a palindrome (995868599).

The spelling of 631434463 in words is "six hundred thirty-one million, four hundred thirty-four thousand, four hundred sixty-three".