87008155 has 8 divisors (see below), whose sum is σ = 112441392. Its totient is φ = 64252128.

The previous prime is 87008147. The next prime is 87008197. The reversal of 87008155 is 55180078.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87008155 - 2³ = 87008147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87008155.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669229 + ... + 669358.

It is an arithmetic number, because the mean of its divisors is an integer number (14055174).

Almost surely, 2^87008155 is an apocalyptic number.

87008155 is a deficient number, since it is larger than the sum of its proper divisors (25433237).

87008155 is a wasteful number, since it uses less digits than its factorization.

87008155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338605.

The product of its (nonzero) digits is 11200, while the sum is 34.

The square root of 87008155 is about 9327.8161967312. The cubic root of 87008155 is about 443.1186066385.

The spelling of 87008155 in words is "eighty-seven million, eight thousand, one hundred fifty-five".