2196915 has 40 divisors (see below), whose sum is σ = 4167888. Its totient is φ = 987840.

The previous prime is 2196889. The next prime is 2196917. The reversal of 2196915 is 5196912.

It is not a de Polignac number, because 2196915 - 2⁸ = 2196659 is a prime.

2196915 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2196917) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 35985 + ... + 36045.

2^2196915 is an apocalyptic number.

2196915 is a deficient number, since it is larger than the sum of its proper divisors (1970973).

2196915 is an frugal number, since it uses more digits than its factorization.

2196915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 76 counting only the distinct ones).

The product of its digits is 4860, while the sum is 33.

The square root of 2196915 is about 1482.1993793009. The cubic root of 2196915 is about 129.9983234498.

The spelling of 2196915 in words is "two million, one hundred ninety-six thousand, nine hundred fifteen".