87897163 has 8 divisors (see below), whose sum is σ = 91075968. Its totient is φ = 84760704.

The previous prime is 87897151. The next prime is 87897181. The reversal of 87897163 is 36179878.

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 87897163 - 2¹³ = 87888971 is a prime.

It is a super-2 number, since 2×87897163² = 15451822526897138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87897133) 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, 6331 + ... + 14692.

It is an arithmetic number, because the mean of its divisors is an integer number (11384496).

Almost surely, 2^87897163 is an apocalyptic number.

87897163 is a deficient number, since it is larger than the sum of its proper divisors (3178805).

87897163 is a wasteful number, since it uses less digits than its factorization.

87897163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21173.

The product of its digits is 508032, while the sum is 49.

The square root of 87897163 is about 9375.3486868489. The cubic root of 87897163 is about 444.6226873655.

The spelling of 87897163 in words is "eighty-seven million, eight hundred ninety-seven thousand, one hundred sixty-three".