75304427 has 8 divisors (see below), whose sum is σ = 82237680. Its totient is φ = 68385760.
The previous prime is 75304403. The next prime is 75304447. The reversal of 75304427 is 72440357.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 75304427 - 220 = 74255851 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 75304393 and 75304402.
It is not an unprimeable number, because it can be changed into a prime (75304447) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9113 + ... + 15285.
It is an arithmetic number, because the mean of its divisors is an integer number (10279710).
Almost surely, 275304427 is an apocalyptic number.
75304427 is a deficient number, since it is larger than the sum of its proper divisors (6933253).
75304427 is a wasteful number, since it uses less digits than its factorization.
75304427 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7293.
The product of its (nonzero) digits is 23520, while the sum is 32.
The square root of 75304427 is about 8677.8123395243. The cubic root of 75304427 is about 422.2861483259.
The spelling of 75304427 in words is "seventy-five million, three hundred four thousand, four hundred twenty-seven".
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