87993959 has 8 divisors (see below), whose sum is σ = 92754480. Its totient is φ = 83246400.

The previous prime is 87993943. The next prime is 87994007. The reversal of 87993959 is 95939978.

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 87993959 - 2⁴ = 87993943 is a prime.

It is a super-3 number, since 3×87993959³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87993898 and 87993907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87993359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12779 + ... + 18419.

It is an arithmetic number, because the mean of its divisors is an integer number (11594310).

Almost surely, 2^87993959 is an apocalyptic number.

87993959 is a deficient number, since it is larger than the sum of its proper divisors (4760521).

87993959 is a wasteful number, since it uses less digits than its factorization.

87993959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6481.

The product of its digits is 5511240, while the sum is 59.

The square root of 87993959 is about 9380.5095277389. The cubic root of 87993959 is about 444.7858398024.

The spelling of 87993959 in words is "eighty-seven million, nine hundred ninety-three thousand, nine hundred fifty-nine".