1426609 has 4 divisors (see below), whose sum is σ = 1465204. Its totient is φ = 1388016.

The previous prime is 1426583. The next prime is 1426613. The reversal of 1426609 is 9066241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 908209 + 518400 = 953^2 + 720^2 .

It is a cyclic number.

It is not a de Polignac number, because 1426609 - 2⁹ = 1426097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19242 + ... + 19315.

It is an arithmetic number, because the mean of its divisors is an integer number (366301).

2^1426609 is an apocalyptic number.

It is an amenable number.

1426609 is a deficient number, since it is larger than the sum of its proper divisors (38595).

1426609 is an equidigital number, since it uses as much as digits as its factorization.

1426609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38594.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1426609 is about 1194.4073844380. The cubic root of 1426609 is about 112.5731935216.

The spelling of 1426609 in words is "one million, four hundred twenty-six thousand, six hundred nine".