2198769 has 4 divisors (see below), whose sum is σ = 2931696. Its totient is φ = 1465844.

The previous prime is 2198767. The next prime is 2198783. The reversal of 2198769 is 9678912.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2198769 - 2¹ = 2198767 is a prime.

It is a super-2 number, since 2×2198769² = 9669170230722, which contains 22 as substring.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 2198769.

It is not an unprimeable number, because it can be changed into a prime (2198761) 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, 366459 + ... + 366464.

It is an arithmetic number, because the mean of its divisors is an integer number (732924).

2^2198769 is an apocalyptic number.

It is an amenable number.

2198769 is a deficient number, since it is larger than the sum of its proper divisors (732927).

2198769 is an equidigital number, since it uses as much as digits as its factorization.

2198769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732926.

The product of its digits is 54432, while the sum is 42.

The square root of 2198769 is about 1482.8246693389. The cubic root of 2198769 is about 130.0348821582.

It can be divided in two parts, 21 and 98769, that added together give a triangular number (98790 = T₄₄₄).

The spelling of 2198769 in words is "two million, one hundred ninety-eight thousand, seven hundred sixty-nine".