87870718 has 16 divisors (see below), whose sum is σ = 148117536. Its totient is φ = 38792160.

The previous prime is 87870703. The next prime is 87870719. The reversal of 87870718 is 81707878.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87870719) 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, 72873 + ... + 74068.

It is an arithmetic number, because the mean of its divisors is an integer number (9257346).

Almost surely, 2^87870718 is an apocalyptic number.

87870718 is a deficient number, since it is larger than the sum of its proper divisors (60246818).

87870718 is a wasteful number, since it uses less digits than its factorization.

87870718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146979.

The product of its (nonzero) digits is 175616, while the sum is 46.

The square root of 87870718 is about 9373.9382332081. The cubic root of 87870718 is about 444.5780927281.

It can be divided in two parts, 87870 and 718, that added together give a palindrome (88588).

The spelling of 87870718 in words is "eighty-seven million, eight hundred seventy thousand, seven hundred eighteen".