87706081 has 8 divisors (see below), whose sum is σ = 89177760. Its totient is φ = 86246688.

The previous prime is 87706057. The next prime is 87706127. The reversal of 87706081 is 18060778.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 87706081 - 2⁵ = 87706049 is a prime.

It is a super-2 number, since 2×87706081² = 15384713288757122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87706081.

It is not an unprimeable number, because it can be changed into a prime (87704081) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11925 + ... + 17821.

It is an arithmetic number, because the mean of its divisors is an integer number (11147220).

Almost surely, 2^87706081 is an apocalyptic number.

It is an amenable number.

87706081 is a deficient number, since it is larger than the sum of its proper divisors (1471679).

87706081 is a wasteful number, since it uses less digits than its factorization.

87706081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6143.

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 87706081 is about 9365.1524814068. The cubic root of 87706081 is about 444.3002612140.

The spelling of 87706081 in words is "eighty-seven million, seven hundred six thousand, eighty-one".