1966670 has 16 divisors (see below), whose sum is σ = 3561840. Its totient is φ = 781824.

The previous prime is 1966669. The next prime is 1966681. The reversal of 1966670 is 766691.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1966670.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1421 + ... + 2439.

It is an arithmetic number, because the mean of its divisors is an integer number (222615).

2^1966670 is an apocalyptic number.

1966670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1966670 is a deficient number, since it is larger than the sum of its proper divisors (1595170).

1966670 is a wasteful number, since it uses less digits than its factorization.

1966670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 1966670 is about 1402.3801196537. The cubic root of 1966670 is about 125.2882945787.

The spelling of 1966670 in words is "one million, nine hundred sixty-six thousand, six hundred seventy".