87666342 has 16 divisors (see below), whose sum is σ = 184560960. Its totient is φ = 27684072.

The previous prime is 87666311. The next prime is 87666347. The reversal of 87666342 is 24366678.

It is a junction number, because it is equal to n+sod(n) for n = 87666294 and 87666303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87666347) 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, 384388 + ... + 384615.

It is an arithmetic number, because the mean of its divisors is an integer number (11535060).

Almost surely, 2^87666342 is an apocalyptic number.

87666342 is an abundant number, since it is smaller than the sum of its proper divisors (96894618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87666342 is a wasteful number, since it uses less digits than its factorization.

87666342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769027.

The product of its digits is 290304, while the sum is 42.

The square root of 87666342 is about 9363.0305991169. The cubic root of 87666342 is about 444.2331479833.

The spelling of 87666342 in words is "eighty-seven million, six hundred sixty-six thousand, three hundred forty-two".