87983642606 has 8 divisors (see below), whose sum is σ = 133458334560. Its totient is φ = 43497531088.

The previous prime is 87983642603. The next prime is 87983642633. The reversal of 87983642606 is 60624638978.

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

It is a super-2 number, since 2×87983642606² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87983642603) 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, 247144886 + ... + 247145241.

It is an arithmetic number, because the mean of its divisors is an integer number (16682291820).

Almost surely, 2^87983642606 is an apocalyptic number.

87983642606 is a deficient number, since it is larger than the sum of its proper divisors (45474691954).

87983642606 is a wasteful number, since it uses less digits than its factorization.

87983642606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494290218.

The product of its (nonzero) digits is 20901888, while the sum is 59.

The spelling of 87983642606 in words is "eighty-seven billion, nine hundred eighty-three million, six hundred forty-two thousand, six hundred six".