80744 has 8 divisors (see below), whose sum is σ = 151410. Its totient is φ = 40368.
The previous prime is 80737. The next prime is 80747. The reversal of 80744 is 44708.
It can be written as a sum of positive squares in only one way, i.e., 68644 + 12100 = 262^2 + 110^2 .
It is a tau number, because it is divible by the number of its divisors (8).
It is not an unprimeable number, because it can be changed into a prime (80747) by changing a digit.
80744 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5039 + ... + 5054.
280744 is an apocalyptic number.
It is an amenable number.
80744 is a deficient number, since it is larger than the sum of its proper divisors (70666).
80744 is a wasteful number, since it uses less digits than its factorization.
80744 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10099 (or 10095 counting only the distinct ones).
The product of its (nonzero) digits is 896, while the sum is 23.
The square root of 80744 is about 284.1548873414. The cubic root of 80744 is about 43.2218567953.
The spelling of 80744 in words is "eighty thousand, seven hundred forty-four".
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