87661334 has 8 divisors (see below), whose sum is σ = 132794208. Its totient is φ = 43396600.

The previous prime is 87661309. The next prime is 87661337. The reversal of 87661334 is 43316678.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87661337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216782 + ... + 217185.

It is an arithmetic number, because the mean of its divisors is an integer number (16599276).

Almost surely, 2^87661334 is an apocalyptic number.

87661334 is a deficient number, since it is larger than the sum of its proper divisors (45132874).

87661334 is a wasteful number, since it uses less digits than its factorization.

87661334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434070.

The product of its digits is 72576, while the sum is 38.

The square root of 87661334 is about 9362.7631605205. The cubic root of 87661334 is about 444.2246887810.

The spelling of 87661334 in words is "eighty-seven million, six hundred sixty-one thousand, three hundred thirty-four".