1016819 has 4 divisors (see below), whose sum is σ = 1020696. Its totient is φ = 1012944.

The previous prime is 1016789. The next prime is 1016839. The reversal of 1016819 is 9186101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1016819 - 2¹⁶ = 951283 is a prime.

It is a super-2 number, since 2×1016819² = 2067841757522, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (1016839) 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 in 3 ways as a sum of consecutive naturals, for example, 1514 + ... + 2079.

It is an arithmetic number, because the mean of its divisors is an integer number (255174).

2^1016819 is an apocalyptic number.

1016819 is a deficient number, since it is larger than the sum of its proper divisors (3877).

1016819 is an equidigital number, since it uses as much as digits as its factorization.

1016819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3876.

The product of its (nonzero) digits is 432, while the sum is 26.

The square root of 1016819 is about 1008.3744344240. The cubic root of 1016819 is about 100.5575192794.

The spelling of 1016819 in words is "one million, sixteen thousand, eight hundred nineteen".