80477 has 4 divisors (see below), whose sum is σ = 84000. Its totient is φ = 76956.
The previous prime is 80473. The next prime is 80489. The reversal of 80477 is 77408.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 80477 - 22 = 80473 is a prime.
It is a Duffinian number.
It is a nialpdrome in base 11.
It is a zygodrome in base 11.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80471) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1727 + ... + 1772.
It is an arithmetic number, because the mean of its divisors is an integer number (21000).
280477 is an apocalyptic number.
It is an amenable number.
80477 is a deficient number, since it is larger than the sum of its proper divisors (3523).
80477 is a wasteful number, since it uses less digits than its factorization.
80477 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3522.
The product of its (nonzero) digits is 1568, while the sum is 26.
The square root of 80477 is about 283.6846841125. The cubic root of 80477 is about 43.1741629341.
The spelling of 80477 in words is "eighty thousand, four hundred seventy-seven".
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