84746666 has 8 divisors (see below), whose sum is σ = 134597700. Its totient is φ = 39880768.

The previous prime is 84746663. The next prime is 84746677. The reversal of 84746666 is 66664748.

It can be written as a sum of positive squares in 2 ways, for example, as 84732025 + 14641 = 9205^2 + 121^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 84746666.

It is not an unprimeable number, because it can be changed into a prime (84746663) 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, 1246241 + ... + 1246308.

Almost surely, 2^84746666 is an apocalyptic number.

84746666 is a deficient number, since it is larger than the sum of its proper divisors (49851034).

84746666 is a wasteful number, since it uses less digits than its factorization.

84746666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492568.

The product of its digits is 1161216, while the sum is 47.

The square root of 84746666 is about 9205.7952399562. The cubic root of 84746666 is about 439.2457221675.

The spelling of 84746666 in words is "eighty-four million, seven hundred forty-six thousand, six hundred sixty-six".