634948 has 12 divisors (see below), whose sum is σ = 1118572. Its totient is φ = 315360.

The previous prime is 634943. The next prime is 634969. The reversal of 634948 is 849436.

It can be written as a sum of positive squares in 2 ways, for example, as 222784 + 412164 = 472^2 + 642^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 6⁷ + 3³ + 9⁵ + 4⁵ + 4⁹ + 8⁵ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634943) by changing a digit.

634948 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, 286 + ... + 1162.

2⁶³⁴⁹⁴⁸ is an apocalyptic number.

It is an amenable number.

634948 is a deficient number, since it is larger than the sum of its proper divisors (483624).

634948 is a wasteful number, since it uses less digits than its factorization.

634948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062 (or 1060 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 634948 is about 796.8362441556. The cubic root of 634948 is about 85.9500340726.

The spelling of 634948 in words is "six hundred thirty-four thousand, nine hundred forty-eight".