1970009 has 4 divisors (see below), whose sum is σ = 2018100. Its totient is φ = 1921920.

The previous prime is 1969997. The next prime is 1970029. The reversal of 1970009 is 9000791.

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 120409 + 1849600 = 347^2 + 1360^2 .

It is a cyclic number.

It is not a de Polignac number, because 1970009 - 2⁴ = 1969993 is a prime.

It is a super-3 number, since 3×1970009³ = 22936433354336132187, which contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1970009.

It is not an unprimeable number, because it can be changed into a prime (1970029) 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, 23984 + ... + 24065.

It is an arithmetic number, because the mean of its divisors is an integer number (504525).

2^1970009 is an apocalyptic number.

It is an amenable number.

1970009 is a deficient number, since it is larger than the sum of its proper divisors (48091).

1970009 is an equidigital number, since it uses as much as digits as its factorization.

1970009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48090.

The product of its (nonzero) digits is 567, while the sum is 26.

The square root of 1970009 is about 1403.5700908754. The cubic root of 1970009 is about 125.3591590498.

The spelling of 1970009 in words is "one million, nine hundred seventy thousand, nine".