87066646 has 16 divisors (see below), whose sum is σ = 132387840. Its totient is φ = 42940800.

The previous prime is 87066641. The next prime is 87066677. The reversal of 87066646 is 64666078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87066641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67435 + ... + 68713.

It is an arithmetic number, because the mean of its divisors is an integer number (8274240).

Almost surely, 2^87066646 is an apocalyptic number.

87066646 is a deficient number, since it is larger than the sum of its proper divisors (45321194).

87066646 is a wasteful number, since it uses less digits than its factorization.

87066646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 87066646 is about 9330.9509697565. The cubic root of 87066646 is about 443.2178794967.

The spelling of 87066646 in words is "eighty-seven million, sixty-six thousand, six hundred forty-six".