1998614 has 4 divisors (see below), whose sum is σ = 2997924. Its totient is φ = 999306.

The previous prime is 1998611. The next prime is 1998617. The reversal of 1998614 is 4168991.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4168991 = 839 ⋅4969.

It is an interprime number because it is at equal distance from previous prime (1998611) and next prime (1998617).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1998611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499652 + ... + 499655.

It is an arithmetic number, because the mean of its divisors is an integer number (749481).

2^1998614 is an apocalyptic number.

1998614 is a deficient number, since it is larger than the sum of its proper divisors (999310).

1998614 is an equidigital number, since it uses as much as digits as its factorization.

1998614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999309.

The product of its digits is 15552, while the sum is 38.

The square root of 1998614 is about 1413.7234524475. The cubic root of 1998614 is about 125.9629940876.

The spelling of 1998614 in words is "one million, nine hundred ninety-eight thousand, six hundred fourteen".