1970239 has 4 divisors (see below), whose sum is σ = 2002600. Its totient is φ = 1937880.

The previous prime is 1970237. The next prime is 1970257. The reversal of 1970239 is 9320791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9320791 = 449 ⋅20759.

It is a cyclic number.

It is not a de Polignac number, because 1970239 - 2¹ = 1970237 is a prime.

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 1970239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1970233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16089 + ... + 16210.

It is an arithmetic number, because the mean of its divisors is an integer number (500650).

2^1970239 is an apocalyptic number.

1970239 is a deficient number, since it is larger than the sum of its proper divisors (32361).

1970239 is an equidigital number, since it uses as much as digits as its factorization.

1970239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32360.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 1970239 is about 1403.6520224044. The cubic root of 1970239 is about 125.3640374513.

It can be divided in two parts, 1970 and 239, that added together give a square (2209 = 47²).

The spelling of 1970239 in words is "one million, nine hundred seventy thousand, two hundred thirty-nine".