87989759 has 8 divisors (see below), whose sum is σ = 103372752. Its totient is φ = 73837440.

The previous prime is 87989723. The next prime is 87989809. The reversal of 87989759 is 95798978.

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 87989759 - 2¹² = 87985663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87989719) 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, 307514 + ... + 307799.

It is an arithmetic number, because the mean of its divisors is an integer number (12921594).

Almost surely, 2^87989759 is an apocalyptic number.

87989759 is a deficient number, since it is larger than the sum of its proper divisors (15382993).

87989759 is a wasteful number, since it uses less digits than its factorization.

87989759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615337.

The product of its digits is 11430720, while the sum is 62.

The square root of 87989759 is about 9380.2856566311. The cubic root of 87989759 is about 444.7787630656.

The spelling of 87989759 in words is "eighty-seven million, nine hundred eighty-nine thousand, seven hundred fifty-nine".