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427080779 is a prime number
BaseRepresentation
bin11001011101001…
…011110001001011
31002202121221200122
4121131023301023
51333313041104
6110213453455
713404061316
oct3135136113
91082557618
10427080779
111aa092124
12bb04128b
136a633928
1440a1397d
15277626be
hex1974bc4b

427080779 has 2 divisors, whose sum is σ = 427080780. Its totient is φ = 427080778.

The previous prime is 427080757. The next prime is 427080781. The reversal of 427080779 is 977080724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 427080779 - 28 = 427080523 is a prime.

It is a Sophie Germain prime.

Together with 427080781, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (427080799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213540389 + 213540390.

It is an arithmetic number, because the mean of its divisors is an integer number (213540390).

Almost surely, 2427080779 is an apocalyptic number.

427080779 is a deficient number, since it is larger than the sum of its proper divisors (1).

427080779 is an equidigital number, since it uses as much as digits as its factorization.

427080779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 197568, while the sum is 44.

The square root of 427080779 is about 20665.9328122396. The cubic root of 427080779 is about 753.0723034908.

Subtracting 427080779 from its reverse (977080724), we obtain a palindrome (549999945).

The spelling of 427080779 in words is "four hundred twenty-seven million, eighty thousand, seven hundred seventy-nine".