1670066 has 4 divisors (see below), whose sum is σ = 2505102. Its totient is φ = 835032.

The previous prime is 1670059. The next prime is 1670089. The reversal of 1670066 is 6600761.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1635841 + 34225 = 1279^2 + 185^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 417515 + ... + 417518.

2^1670066 is an apocalyptic number.

1670066 is a deficient number, since it is larger than the sum of its proper divisors (835036).

1670066 is an equidigital number, since it uses as much as digits as its factorization.

1670066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835035.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 1670066 is about 1292.3103342464. The cubic root of 1670066 is about 118.6436625161.

The spelling of 1670066 in words is "one million, six hundred seventy thousand, sixty-six".