1864066 has 8 divisors (see below), whose sum is σ = 2806524. Its totient is φ = 928560.

The previous prime is 1864043. The next prime is 1864069. The reversal of 1864066 is 6604681.

It can be written as a sum of positive squares in 2 ways, for example, as 1863225 + 841 = 1365^2 + 29^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1864069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1005 + ... + 2176.

2^1864066 is an apocalyptic number.

1864066 is a deficient number, since it is larger than the sum of its proper divisors (942458).

1864066 is a wasteful number, since it uses less digits than its factorization.

1864066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3476.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1864066 is about 1365.3080238540. The cubic root of 1864066 is about 123.0704423871.

The spelling of 1864066 in words is "one million, eight hundred sixty-four thousand, sixty-six".