634955493 has 8 divisors (see below), whose sum is σ = 875800800. Its totient is φ = 408706928.

The previous prime is 634955467. The next prime is 634955539. The reversal of 634955493 is 394559436.

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

It is a cyclic number.

It is not a de Polignac number, because 634955493 - 2¹² = 634951397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634955413) 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, 3649083 + ... + 3649256.

It is an arithmetic number, because the mean of its divisors is an integer number (109475100).

Almost surely, 2^634955493 is an apocalyptic number.

It is an amenable number.

634955493 is a deficient number, since it is larger than the sum of its proper divisors (240845307).

634955493 is a wasteful number, since it uses less digits than its factorization.

634955493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7298371.

The product of its digits is 1749600, while the sum is 48.

The square root of 634955493 is about 25198.3232180239. The cubic root of 634955493 is about 859.5037216912.

The spelling of 634955493 in words is "six hundred thirty-four million, nine hundred fifty-five thousand, four hundred ninety-three".