2198537 has 8 divisors (see below), whose sum is σ = 2410560. Its totient is φ = 1988560.

The previous prime is 2198533. The next prime is 2198569. The reversal of 2198537 is 7358912.

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 2198537 - 2² = 2198533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2198497 and 2198506.

It is not an unprimeable number, because it can be changed into a prime (2198533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2588 + ... + 3330.

It is an arithmetic number, because the mean of its divisors is an integer number (301320).

2^2198537 is an apocalyptic number.

It is an amenable number.

2198537 is a deficient number, since it is larger than the sum of its proper divisors (212023).

2198537 is a wasteful number, since it uses less digits than its factorization.

2198537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023.

The product of its digits is 15120, while the sum is 35.

The square root of 2198537 is about 1482.7464382018. The cubic root of 2198537 is about 130.0303085151.

It can be divided in two parts, 21985 and 37, that added together give a palindrome (22022).

The spelling of 2198537 in words is "two million, one hundred ninety-eight thousand, five hundred thirty-seven".