1996919 has 8 divisors (see below), whose sum is σ = 2115840. Its totient is φ = 1879416.

The previous prime is 1996903. The next prime is 1996933. The reversal of 1996919 is 9196991.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1996919 - 2⁴ = 1996903 is a prime.

It is a super-2 number, since 2×1996919² = 7975370985122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1996919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1996949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4082 + ... + 4544.

It is an arithmetic number, because the mean of its divisors is an integer number (264480).

2^1996919 is an apocalyptic number.

1996919 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1996919 is a deficient number, since it is larger than the sum of its proper divisors (118921).

1996919 is a wasteful number, since it uses less digits than its factorization.

1996919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709.

The product of its digits is 39366, while the sum is 44.

The square root of 1996919 is about 1413.1238445373. The cubic root of 1996919 is about 125.9273747932.

The spelling of 1996919 in words is "one million, nine hundred ninety-six thousand, nine hundred nineteen".