634896 has 30 divisors (see below), whose sum is σ = 1777230. Its totient is φ = 211584.

The previous prime is 634891. The next prime is 634901. The reversal of 634896 is 698436.

It is an interprime number because it is at equal distance from previous prime (634891) and next prime (634901).

It can be written as a sum of positive squares in only one way, i.e., 404496 + 230400 = 636^2 + 480^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 634896.

It is not an unprimeable number, because it can be changed into a prime (634891) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2061 + ... + 2348.

It is an arithmetic number, because the mean of its divisors is an integer number (59241).

2⁶³⁴⁸⁹⁶ is an apocalyptic number.

It is an amenable number.

634896 is an abundant number, since it is smaller than the sum of its proper divisors (1142334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

634896 is a wasteful number, since it uses less digits than its factorization.

634896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4423 (or 4414 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 634896 is about 796.8036144496. The cubic root of 634896 is about 85.9476876738.

The spelling of 634896 in words is "six hundred thirty-four thousand, eight hundred ninety-six".