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427627859 is a prime number
BaseRepresentation
bin11001011111010…
…001010101010011
31002210122202010212
4121133101111103
51333433042414
6110233314335
713411530311
oct3137212523
91083582125
10427627859
111aa42615a
12bb2659ab
136a795949
1440b170b1
152781e83e
hex197d1553

427627859 has 2 divisors, whose sum is σ = 427627860. Its totient is φ = 427627858.

The previous prime is 427627853. The next prime is 427627901. The reversal of 427627859 is 958726724.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-427627859 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (427627853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213813929 + 213813930.

It is an arithmetic number, because the mean of its divisors is an integer number (213813930).

Almost surely, 2427627859 is an apocalyptic number.

427627859 is a deficient number, since it is larger than the sum of its proper divisors (1).

427627859 is an equidigital number, since it uses as much as digits as its factorization.

427627859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693440, while the sum is 50.

The square root of 427627859 is about 20679.1648525756. The cubic root of 427627859 is about 753.3937220018.

The spelling of 427627859 in words is "four hundred twenty-seven million, six hundred twenty-seven thousand, eight hundred fifty-nine".