2196925 has 6 divisors (see below), whose sum is σ = 2724218. Its totient is φ = 1757520.

The previous prime is 2196917. The next prime is 2196941. The reversal of 2196925 is 5296912.

2196925 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 363609 + 1833316 = 603^2 + 1354^2 .

It is not a de Polignac number, because 2196925 - 2³ = 2196917 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43914 + ... + 43963.

2^2196925 is an apocalyptic number.

2196925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2196925 is a deficient number, since it is larger than the sum of its proper divisors (527293).

2196925 is an equidigital number, since it uses as much as digits as its factorization.

2196925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87887 (or 87882 counting only the distinct ones).

The product of its digits is 9720, while the sum is 34.

The square root of 2196925 is about 1482.2027526624. The cubic root of 2196925 is about 129.9985206932.

The spelling of 2196925 in words is "two million, one hundred ninety-six thousand, nine hundred twenty-five".