2197912 has 8 divisors (see below), whose sum is σ = 4121100. Its totient is φ = 1098952.

The previous prime is 2197907. The next prime is 2197919.

2197912 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137362 + ... + 137377.

2^2197912 is an apocalyptic number.

It is an amenable number.

2197912 is a deficient number, since it is larger than the sum of its proper divisors (1923188).

2197912 is a wasteful number, since it uses less digits than its factorization.

2197912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274745 (or 274741 counting only the distinct ones).

The product of its digits is 2268, while the sum is 31.

The square root of 2197912 is about 1482.5356656755. The cubic root of 2197912 is about 130.0179856772.

The spelling of 2197912 in words is "two million, one hundred ninety-seven thousand, nine hundred twelve".