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18066479 is a prime number
BaseRepresentation
bin100010011101…
…0110000101111
31020222212112212
41010322300233
514111111404
61443121035
7306363644
oct104726057
936885485
1018066479
11a21a682
12607317b
133987332
142583dcb
1518bd06e
hex113ac2f

18066479 has 2 divisors, whose sum is σ = 18066480. Its totient is φ = 18066478.

The previous prime is 18066467. The next prime is 18066487. The reversal of 18066479 is 97466081.

It is a strong prime.

It is an emirp because it is prime and its reverse (97466081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18066479 - 24 = 18066463 is a prime.

It is a Sophie Germain 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 (18066409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9033239 + 9033240.

It is an arithmetic number, because the mean of its divisors is an integer number (9033240).

Almost surely, 218066479 is an apocalyptic number.

18066479 is a deficient number, since it is larger than the sum of its proper divisors (1).

18066479 is an equidigital number, since it uses as much as digits as its factorization.

18066479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 18066479 is about 4250.4680918694. The cubic root of 18066479 is about 262.3963805689.

The spelling of 18066479 in words is "eighteen million, sixty-six thousand, four hundred seventy-nine".