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427088917 is a prime number
BaseRepresentation
bin11001011101001…
…101110000010101
31002202122100212001
4121131031300111
51333313321132
6110213555301
713404124123
oct3135156025
91082570761
10427088917
111aa098252
12bb045b31
136a637548
1440a16913
1527764ce7
hex1974dc15

427088917 has 2 divisors, whose sum is σ = 427088918. Its totient is φ = 427088916.

The previous prime is 427088911. The next prime is 427088929. The reversal of 427088917 is 719880724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 406667556 + 20421361 = 20166^2 + 4519^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-427088917 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427088911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213544458 + 213544459.

It is an arithmetic number, because the mean of its divisors is an integer number (213544459).

Almost surely, 2427088917 is an apocalyptic number.

It is an amenable number.

427088917 is a deficient number, since it is larger than the sum of its proper divisors (1).

427088917 is an equidigital number, since it uses as much as digits as its factorization.

427088917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225792, while the sum is 46.

The square root of 427088917 is about 20666.1297053899. The cubic root of 427088917 is about 753.0770867104.

The spelling of 427088917 in words is "four hundred twenty-seven million, eighty-eight thousand, nine hundred seventeen".