2197429 has 8 divisors (see below), whose sum is σ = 2422112. Its totient is φ = 1980720.

The previous prime is 2197427. The next prime is 2197453. The reversal of 2197429 is 9247912.

It is a happy number.

2197429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2197429 - 2¹ = 2197427 is a prime.

It is a Duffinian number.

2197429 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2197394 and 2197403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197421) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1407 + ... + 2524.

It is an arithmetic number, because the mean of its divisors is an integer number (302764).

2^2197429 is an apocalyptic number.

It is an amenable number.

2197429 is a deficient number, since it is larger than the sum of its proper divisors (224683).

2197429 is a wasteful number, since it uses less digits than its factorization.

2197429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3987.

The product of its digits is 9072, while the sum is 34.

The square root of 2197429 is about 1482.3727601383. The cubic root of 2197429 is about 130.0084609878.

The spelling of 2197429 in words is "two million, one hundred ninety-seven thousand, four hundred twenty-nine".