2098643 has 4 divisors (see below), whose sum is σ = 2171040. Its totient is φ = 2026248.

The previous prime is 2098639. The next prime is 2098651. The reversal of 2098643 is 3468902.

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 2098643 - 2² = 2098639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2098673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36155 + ... + 36212.

It is an arithmetic number, because the mean of its divisors is an integer number (542760).

2^2098643 is an apocalyptic number.

2098643 is a deficient number, since it is larger than the sum of its proper divisors (72397).

2098643 is an equidigital number, since it uses as much as digits as its factorization.

2098643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72396.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 2098643 is about 1448.6693894744. The cubic root of 2098643 is about 128.0303272866.

The spelling of 2098643 in words is "two million, ninety-eight thousand, six hundred forty-three".