87664202 has 8 divisors (see below), whose sum is σ = 131599812. Its totient is φ = 43797600.

The previous prime is 87664183. The next prime is 87664217. The reversal of 87664202 is 20246678.

It can be written as a sum of positive squares in 2 ways, for example, as 83375161 + 4289041 = 9131^2 + 2071^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13949 + ... + 19232.

Almost surely, 2^87664202 is an apocalyptic number.

87664202 is a deficient number, since it is larger than the sum of its proper divisors (43935610).

87664202 is a wasteful number, since it uses less digits than its factorization.

87664202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34504.

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

The square root of 87664202 is about 9362.9163191818. The cubic root of 87664202 is about 444.2295332677.

The spelling of 87664202 in words is "eighty-seven million, six hundred sixty-four thousand, two hundred two".