87109467 has 4 divisors (see below), whose sum is σ = 116145960. Its totient is φ = 58072976.

The previous prime is 87109397. The next prime is 87109481. The reversal of 87109467 is 76490178.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87109467 - 2⁷ = 87109339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87109067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14518242 + ... + 14518247.

It is an arithmetic number, because the mean of its divisors is an integer number (29036490).

Almost surely, 2^87109467 is an apocalyptic number.

87109467 is a deficient number, since it is larger than the sum of its proper divisors (29036493).

87109467 is a wasteful number, since it uses less digits than its factorization.

87109467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29036492.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 87109467 is about 9333.2452555368. The cubic root of 87109467 is about 443.2905285272.

The spelling of 87109467 in words is "eighty-seven million, one hundred nine thousand, four hundred sixty-seven".