87759551 has 8 divisors (see below), whose sum is σ = 95841408. Its totient is φ = 79695000.

The previous prime is 87759547. The next prime is 87759563. The reversal of 87759551 is 15595778.

It is a happy number.

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

It is not a de Polignac number, because 87759551 - 2² = 87759547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87759496 and 87759505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87759571) 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, 7766 + ... + 15356.

It is an arithmetic number, because the mean of its divisors is an integer number (11980176).

Almost surely, 2^87759551 is an apocalyptic number.

87759551 is the 4190-th centered decagonal number.

87759551 is a deficient number, since it is larger than the sum of its proper divisors (8081857).

87759551 is a wasteful number, since it uses less digits than its factorization.

87759551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8653.

The product of its digits is 441000, while the sum is 47.

The square root of 87759551 is about 9368.0067783921. The cubic root of 87759551 is about 444.3905320693.

The spelling of 87759551 in words is "eighty-seven million, seven hundred fifty-nine thousand, five hundred fifty-one".