8697881 has 4 divisors (see below), whose sum is σ = 8795700. Its totient is φ = 8600064.

The previous prime is 8697869. The next prime is 8697889. The reversal of 8697881 is 1887968.

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 1190281 + 7507600 = 1091^2 + 2740^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8697881 is a prime.

It is a super-2 number, since 2×8697881² = 151306267780322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8697889) 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, 48776 + ... + 48953.

It is an arithmetic number, because the mean of its divisors is an integer number (2198925).

Almost surely, 2^8697881 is an apocalyptic number.

It is an amenable number.

8697881 is a deficient number, since it is larger than the sum of its proper divisors (97819).

8697881 is an equidigital number, since it uses as much as digits as its factorization.

8697881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97818.

The product of its digits is 193536, while the sum is 47.

The square root of 8697881 is about 2949.2170147346. The cubic root of 8697881 is about 205.6543123002.

The spelling of 8697881 in words is "eight million, six hundred ninety-seven thousand, eight hundred eighty-one".