1970806 has 4 divisors (see below), whose sum is σ = 2956212. Its totient is φ = 985402.

The previous prime is 1970791. The next prime is 1970809. The reversal of 1970806 is 6080791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6080791 = 2069 ⋅2939.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1970809) 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 as a sum of consecutive naturals, namely, 492700 + ... + 492703.

It is an arithmetic number, because the mean of its divisors is an integer number (739053).

2^1970806 is an apocalyptic number.

1970806 is a deficient number, since it is larger than the sum of its proper divisors (985406).

1970806 is an equidigital number, since it uses as much as digits as its factorization.

1970806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985405.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 1970806 is about 1403.8539810108. The cubic root of 1970806 is about 125.3760621502.

The spelling of 1970806 in words is "one million, nine hundred seventy thousand, eight hundred six".