2070509 has 4 divisors (see below), whose sum is σ = 2366304. Its totient is φ = 1774716.

The previous prime is 2070479. The next prime is 2070517. The reversal of 2070509 is 9050702.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2070509 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 (2070559) 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, 147887 + ... + 147900.

It is an arithmetic number, because the mean of its divisors is an integer number (591576).

2^2070509 is an apocalyptic number.

It is an amenable number.

2070509 is a deficient number, since it is larger than the sum of its proper divisors (295795).

2070509 is an equidigital number, since it uses as much as digits as its factorization.

2070509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295794.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 2070509 is about 1438.9263358491. The cubic root of 2070509 is about 127.4556349554.

The spelling of 2070509 in words is "two million, seventy thousand, five hundred nine".