2197879975 has 12 divisors (see below), whose sum is σ = 2739646080. Its totient is φ = 1749094400.

The previous prime is 2197879921. The next prime is 2197879979. The reversal of 2197879975 is 5799787912.

It is not a de Polignac number, because 2197879975 - 2²⁷ = 2063662247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197879979) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 225370 + ... + 234919.

It is an arithmetic number, because the mean of its divisors is an integer number (228303840).

Almost surely, 2^2197879975 is an apocalyptic number.

2197879975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2197879975 is a deficient number, since it is larger than the sum of its proper divisors (541766105).

2197879975 is a wasteful number, since it uses less digits than its factorization.

2197879975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460490 (or 460485 counting only the distinct ones).

The product of its digits is 20003760, while the sum is 64.

The square root of 2197879975 is about 46881.5526086754. The cubic root of 2197879975 is about 1300.1735419210.

The spelling of 2197879975 in words is "two billion, one hundred ninety-seven million, eight hundred seventy-nine thousand, nine hundred seventy-five".