63604 has 6 divisors (see below), whose sum is σ = 111314. Its totient is φ = 31800.
The previous prime is 63601. The next prime is 63607. The reversal of 63604 is 40636.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (63601) and next prime (63607).
It can be written as a sum of positive squares in only one way, i.e., 63504 + 100 = 252^2 + 10^2 .
It is a nialpdrome in base 16.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (63601) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7947 + ... + 7954.
263604 is an apocalyptic number.
It is an amenable number.
63604 is a deficient number, since it is larger than the sum of its proper divisors (47710).
63604 is a wasteful number, since it uses less digits than its factorization.
63604 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15905 (or 15903 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 19.
The square root of 63604 is about 252.1983346495. The cubic root of 63604 is about 39.9173292564.
The spelling of 63604 in words is "sixty-three thousand, six hundred four".
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