2146709 has 8 divisors (see below), whose sum is σ = 2288088. Its totient is φ = 2007040.

The previous prime is 2146693. The next prime is 2146723. The reversal of 2146709 is 9076412.

It can be written as a sum of positive squares in 4 ways, for example, as 1697809 + 448900 = 1303^2 + 670^2 .

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 2146709 - 2⁴ = 2146693 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 (2146759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3029 + ... + 3669.

It is an arithmetic number, because the mean of its divisors is an integer number (286011).

2^2146709 is an apocalyptic number.

It is an amenable number.

2146709 is a deficient number, since it is larger than the sum of its proper divisors (141379).

2146709 is a wasteful number, since it uses less digits than its factorization.

2146709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 2146709 is about 1465.1651784014. The cubic root of 2146709 is about 129.0004006157. Note that the first 3 decimals are identical.

The spelling of 2146709 in words is "two million, one hundred forty-six thousand, seven hundred nine".