87163297 has 4 divisors (see below), whose sum is σ = 93868180. Its totient is φ = 80458416.

The previous prime is 87163273. The next prime is 87163331. The reversal of 87163297 is 79236178.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13220496 + 73942801 = 3636^2 + 8599^2 .

It is a cyclic number.

It is not a de Polignac number, because 87163297 - 2¹⁹ = 86639009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87163397) 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, 3352422 + ... + 3352447.

It is an arithmetic number, because the mean of its divisors is an integer number (23467045).

Almost surely, 2^87163297 is an apocalyptic number.

It is an amenable number.

87163297 is a deficient number, since it is larger than the sum of its proper divisors (6704883).

87163297 is a wasteful number, since it uses less digits than its factorization.

87163297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6704882.

The product of its digits is 127008, while the sum is 43.

The square root of 87163297 is about 9336.1285873750. The cubic root of 87163297 is about 443.3818213811.

The spelling of 87163297 in words is "eighty-seven million, one hundred sixty-three thousand, two hundred ninety-seven".