87689067 has 16 divisors (see below), whose sum is σ = 118554912. Its totient is φ = 57646080.

The previous prime is 87689051. The next prime is 87689071. The reversal of 87689067 is 76098678.

It is a happy number.

It is not a de Polignac number, because 87689067 - 2⁴ = 87689051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87689027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157153 + ... + 157709.

It is an arithmetic number, because the mean of its divisors is an integer number (7409682).

Almost surely, 2^87689067 is an apocalyptic number.

87689067 is a deficient number, since it is larger than the sum of its proper divisors (30865845).

87689067 is a wasteful number, since it uses less digits than its factorization.

87689067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The square root of 87689067 is about 9364.2440698649. The cubic root of 87689067 is about 444.2715295935.

The spelling of 87689067 in words is "eighty-seven million, six hundred eighty-nine thousand, sixty-seven".