30700066 has 8 divisors (see below), whose sum is σ = 46457964. Its totient is φ = 15214080.

The previous prime is 30700063. The next prime is 30700081. The reversal of 30700066 is 66000703.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30019441 + 680625 = 5479^2 + 825^2 .

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 (30700063) 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 in 3 ways as a sum of consecutive naturals, for example, 67695 + ... + 68146.

Almost surely, 2^30700066 is an apocalyptic number.

30700066 is a deficient number, since it is larger than the sum of its proper divisors (15757898).

30700066 is a wasteful number, since it uses less digits than its factorization.

30700066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135956.

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

The square root of 30700066 is about 5540.7640267386. The cubic root of 30700066 is about 313.1216544729.

Adding to 30700066 its reverse (66000703), we get a palindrome (96700769).

The spelling of 30700066 in words is "thirty million, seven hundred thousand, sixty-six".