2198503 has 4 divisors (see below), whose sum is σ = 2257960. Its totient is φ = 2139048.

The previous prime is 2198477. The next prime is 2198507. The reversal of 2198503 is 3058912.

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 2198503 - 2¹³ = 2190311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198507) 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, 29673 + ... + 29746.

It is an arithmetic number, because the mean of its divisors is an integer number (564490).

2^2198503 is an apocalyptic number.

2198503 is a deficient number, since it is larger than the sum of its proper divisors (59457).

2198503 is an equidigital number, since it uses as much as digits as its factorization.

2198503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59456.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 2198503 is about 1482.7349729470. The cubic root of 2198503 is about 130.0296382128.

It can be divided in two parts, 2198 and 503, that added together give a triangular number (2701 = T₇₃).

The spelling of 2198503 in words is "two million, one hundred ninety-eight thousand, five hundred three".