634916 has 12 divisors (see below), whose sum is σ = 1176588. Its totient is φ = 298752.

The previous prime is 634903. The next prime is 634927. The reversal of 634916 is 619436.

It can be written as a sum of positive squares in 2 ways, for example, as 556516 + 78400 = 746^2 + 280^2 .

It is an unprimeable number.

634916 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4601 + ... + 4736.

It is an arithmetic number, because the mean of its divisors is an integer number (98049).

2⁶³⁴⁹¹⁶ is an apocalyptic number.

It is an amenable number.

634916 is a deficient number, since it is larger than the sum of its proper divisors (541672).

634916 is a wasteful number, since it uses less digits than its factorization.

634916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9358 (or 9356 counting only the distinct ones).

The product of its digits is 3888, while the sum is 29.

The square root of 634916 is about 796.8161644947. The cubic root of 634916 is about 85.9485901500.

The spelling of 634916 in words is "six hundred thirty-four thousand, nine hundred sixteen".