84266661 has 8 divisors (see below), whose sum is σ = 114475680. Its totient is φ = 55117712.

The previous prime is 84266647. The next prime is 84266719. The reversal of 84266661 is 16666248.

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

It is a cyclic number.

It is not a de Polignac number, because 84266661 - 2⁶ = 84266597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84266261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264831 + ... + 265148.

It is an arithmetic number, because the mean of its divisors is an integer number (14309460).

Almost surely, 2^84266661 is an apocalyptic number.

It is an amenable number.

84266661 is a deficient number, since it is larger than the sum of its proper divisors (30209019).

84266661 is a wasteful number, since it uses less digits than its factorization.

84266661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530035.

The product of its digits is 82944, while the sum is 39.

The square root of 84266661 is about 9179.6874129787. The cubic root of 84266661 is about 438.4148557894.

The spelling of 84266661 in words is "eighty-four million, two hundred sixty-six thousand, six hundred sixty-one".