4919 has 2 divisors, whose sum is σ = 4920. Its totient is φ = 4918.
The previous prime is 4909. The next prime is 4931. The reversal of 4919 is 9194.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 4919 - 24 = 4903 is a prime.
It is a super-2 number, since 2×49192 = 48393122, which contains 22 as substring.
It is a Sophie Germain prime.
It is a plaindrome in base 8, base 15 and base 16.
It is a nialpdrome in base 9.
It is a junction number, because it is equal to n+sod(n) for n = 4894 and 4903.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 4919.
It is not a weakly prime, because it can be changed into another prime (4909) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2459 + 2460.
It is an arithmetic number, because the mean of its divisors is an integer number (2460).
4919 is a deficient number, since it is larger than the sum of its proper divisors (1).
4919 is an equidigital number, since it uses as much as digits as its factorization.
4919 is an evil number, because the sum of its binary digits is even.
The product of its digits is 324, while the sum is 23.
The square root of 4919 is about 70.1355829804. The cubic root of 4919 is about 17.0069175999.
The spelling of 4919 in words is "four thousand, nine hundred nineteen".
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