87806468 has 6 divisors (see below), whose sum is σ = 153661326. Its totient is φ = 43903232.

The previous prime is 87806443. The next prime is 87806483. The reversal of 87806468 is 86460878.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 74615044 + 13191424 = 8638^2 + 3632^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10975805 + ... + 10975812.

It is an arithmetic number, because the mean of its divisors is an integer number (25610221).

Almost surely, 2^87806468 is an apocalyptic number.

It is an amenable number.

87806468 is a deficient number, since it is larger than the sum of its proper divisors (65854858).

87806468 is a wasteful number, since it uses less digits than its factorization.

87806468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21951621 (or 21951619 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 47.

The square root of 87806468 is about 9370.5105517256. The cubic root of 87806468 is about 444.4697096100.

The spelling of 87806468 in words is "eighty-seven million, eight hundred six thousand, four hundred sixty-eight".