87195667 has 4 divisors (see below), whose sum is σ = 93903040. Its totient is φ = 80488296.

The previous prime is 87195649. The next prime is 87195671. The reversal of 87195667 is 76659178.

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 87195667 - 2¹¹ = 87193619 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 87195667.

It is not an unprimeable number, because it can be changed into a prime (87195607) 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, 3353667 + ... + 3353692.

It is an arithmetic number, because the mean of its divisors is an integer number (23475760).

Almost surely, 2^87195667 is an apocalyptic number.

87195667 is a deficient number, since it is larger than the sum of its proper divisors (6707373).

87195667 is a wasteful number, since it uses less digits than its factorization.

87195667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6707372.

The product of its digits is 635040, while the sum is 49.

The square root of 87195667 is about 9337.8620144014. The cubic root of 87195667 is about 443.4367011059.

The spelling of 87195667 in words is "eighty-seven million, one hundred ninety-five thousand, six hundred sixty-seven".