87118767 has 8 divisors (see below), whose sum is σ = 129064880. Its totient is φ = 58079160.

The previous prime is 87118753. The next prime is 87118769. The reversal of 87118767 is 76781178.

It is a happy number.

It is not a de Polignac number, because 87118767 - 2⁸ = 87118511 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 (87118769) 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, 1613284 + ... + 1613337.

It is an arithmetic number, because the mean of its divisors is an integer number (16133110).

Almost surely, 2^87118767 is an apocalyptic number.

87118767 is a deficient number, since it is larger than the sum of its proper divisors (41946113).

87118767 is a wasteful number, since it uses less digits than its factorization.

87118767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3226630 (or 3226624 counting only the distinct ones).

The product of its digits is 131712, while the sum is 45.

The square root of 87118767 is about 9333.7434612271. The cubic root of 87118767 is about 443.3063035260.

The spelling of 87118767 in words is "eighty-seven million, one hundred eighteen thousand, seven hundred sixty-seven".