634656463 has 8 divisors (see below), whose sum is σ = 740754432. Its totient is φ = 532416696.

The previous prime is 634656443. The next prime is 634656467. The reversal of 634656463 is 364656436.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 634656463 - 2¹³ = 634648271 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 (634656467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 964195 + ... + 964852.

It is an arithmetic number, because the mean of its divisors is an integer number (92594304).

Almost surely, 2^634656463 is an apocalyptic number.

634656463 is a deficient number, since it is larger than the sum of its proper divisors (106097969).

634656463 is a wasteful number, since it uses less digits than its factorization.

634656463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1929101.

The product of its digits is 933120, while the sum is 43.

The square root of 634656463 is about 25192.3889895341. The cubic root of 634656463 is about 859.3687737784.

The spelling of 634656463 in words is "six hundred thirty-four million, six hundred fifty-six thousand, four hundred sixty-three".