2198977 has 8 divisors (see below), whose sum is σ = 2455200. Its totient is φ = 1952160.

The previous prime is 2198909. The next prime is 2198981. The reversal of 2198977 is 7798912.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2198977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

2198977 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2198377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1852 + ... + 2797.

It is an arithmetic number, because the mean of its divisors is an integer number (306900).

2^2198977 is an apocalyptic number.

It is an amenable number.

2198977 is a deficient number, since it is larger than the sum of its proper divisors (256223).

2198977 is a wasteful number, since it uses less digits than its factorization.

2198977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4703.

The product of its digits is 63504, while the sum is 43.

The square root of 2198977 is about 1482.8948040910. The cubic root of 2198977 is about 130.0389823922.

The spelling of 2198977 in words is "two million, one hundred ninety-eight thousand, nine hundred seventy-seven".