66704282 has 16 divisors (see below), whose sum is σ = 101658240. Its totient is φ = 32821152.

The previous prime is 66704257. The next prime is 66704299. The reversal of 66704282 is 28240766.

It is a super-2 number, since 2×66704282² = 8898922474271048, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69518 + ... + 70470.

It is an arithmetic number, because the mean of its divisors is an integer number (6353640).

Almost surely, 2^66704282 is an apocalyptic number.

66704282 is a deficient number, since it is larger than the sum of its proper divisors (34953958).

66704282 is a wasteful number, since it uses less digits than its factorization.

66704282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 66704282 is about 8167.2689437780. The cubic root of 66704282 is about 405.5563800516.

The spelling of 66704282 in words is "sixty-six million, seven hundred four thousand, two hundred eighty-two".