76057 has 4 divisors (see below), whose sum is σ = 80080. Its totient is φ = 72036.
The previous prime is 76039. The next prime is 76079. The reversal of 76057 is 75067.
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, and also an emirpimes, since its reverse is a distinct semiprime: 75067 = 271 ⋅277.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-76057 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (76157) by changing a digit.
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, 1983 + ... + 2020.
It is an arithmetic number, because the mean of its divisors is an integer number (20020).
276057 is an apocalyptic number.
It is an amenable number.
76057 is a deficient number, since it is larger than the sum of its proper divisors (4023).
76057 is a wasteful number, since it uses less digits than its factorization.
76057 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4022.
The product of its (nonzero) digits is 1470, while the sum is 25.
The square root of 76057 is about 275.7843360309. The cubic root of 76057 is about 42.3688227552.
Subtracting from 76057 its reverse (75067), we obtain a triangular number (990 = T44).
It can be divided in two parts, 7605 and 7, that multiplied together give a palindrome (53235).
The spelling of 76057 in words is "seventy-six thousand, fifty-seven".
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