1970305 has 8 divisors (see below), whose sum is σ = 2404800. Its totient is φ = 1549296.

The previous prime is 1970291. The next prime is 1970327. The reversal of 1970305 is 5030791.

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 1970305 - 2¹¹ = 1968257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1970305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3045 + ... + 3634.

It is an arithmetic number, because the mean of its divisors is an integer number (300600).

2^1970305 is an apocalyptic number.

It is an amenable number.

1970305 is a deficient number, since it is larger than the sum of its proper divisors (434495).

1970305 is an equidigital number, since it uses as much as digits as its factorization.

1970305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6743.

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 1970305 is about 1403.6755323079. The cubic root of 1970305 is about 125.3654372704.

It can be divided in two parts, 19 and 70305, that multiplied together give a triangular number (1335795 = T₁₆₃₄).

The spelling of 1970305 in words is "one million, nine hundred seventy thousand, three hundred five".