87751715 has 8 divisors (see below), whose sum is σ = 105740448. Its totient is φ = 69909120.

The previous prime is 87751681. The next prime is 87751717. The reversal of 87751715 is 51715778.

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 87751715 - 2¹² = 87747619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87751717) 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, 35207 + ... + 37616.

It is an arithmetic number, because the mean of its divisors is an integer number (13217556).

Almost surely, 2^87751715 is an apocalyptic number.

87751715 is a deficient number, since it is larger than the sum of its proper divisors (17988733).

87751715 is a wasteful number, since it uses less digits than its factorization.

87751715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73069.

The product of its digits is 68600, while the sum is 41.

The square root of 87751715 is about 9367.5885370783. The cubic root of 87751715 is about 444.3773052170.

The spelling of 87751715 in words is "eighty-seven million, seven hundred fifty-one thousand, seven hundred fifteen".