307066 has 4 divisors (see below), whose sum is σ = 460602. Its totient is φ = 153532.

The previous prime is 307033. The next prime is 307067. The reversal of 307066 is 660703.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 660703 = 31 ⋅21313.

It can be written as a sum of positive squares in only one way, i.e., 279841 + 27225 = 529^2 + 165^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (307067) by changing a digit.

307066 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76765 + ... + 76768.

2³⁰⁷⁰⁶⁶ is an apocalyptic number.

307066 is a deficient number, since it is larger than the sum of its proper divisors (153536).

307066 is a wasteful number, since it uses less digits than its factorization.

307066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153535.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 307066 is about 554.1353625244. The cubic root of 307066 is about 67.4648010354.

Adding to 307066 its reverse (660703), we get a palindrome (967769).

It can be divided in two parts, 3070 and 66, that added together give a square (3136 = 56²).

The spelling of 307066 in words is "three hundred seven thousand, sixty-six".