87198995 has 8 divisors (see below), whose sum is σ = 112688016. Its totient is φ = 64393056.

The previous prime is 87198989. The next prime is 87198997. The reversal of 87198995 is 59989178.

It is a happy number.

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

It is not a de Polignac number, because 87198995 - 2⁸ = 87198739 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 87198995.

It is not an unprimeable number, because it can be changed into a prime (87198997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 670697 + ... + 670826.

It is an arithmetic number, because the mean of its divisors is an integer number (14086002).

Almost surely, 2^87198995 is an apocalyptic number.

87198995 is a deficient number, since it is larger than the sum of its proper divisors (25489021).

87198995 is a wasteful number, since it uses less digits than its factorization.

87198995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341541.

The product of its digits is 1632960, while the sum is 56.

The square root of 87198995 is about 9338.0402119503. The cubic root of 87198995 is about 443.4423425887.

The spelling of 87198995 in words is "eighty-seven million, one hundred ninety-eight thousand, nine hundred ninety-five".