8697911965 has 16 divisors (see below), whose sum is σ = 10466150400. Its totient is φ = 6939257472.

The previous prime is 8697911947. The next prime is 8697911969. The reversal of 8697911965 is 5691197968.

It is a cyclic number.

It is not a de Polignac number, because 8697911965 - 2⁵ = 8697911933 is a prime.

It is a super-2 number, since 2×8697911965² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8697911969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4057684 + ... + 4059826.

It is an arithmetic number, because the mean of its divisors is an integer number (654134400).

Almost surely, 2^8697911965 is an apocalyptic number.

It is an amenable number.

8697911965 is a deficient number, since it is larger than the sum of its proper divisors (1768238435).

8697911965 is a wasteful number, since it uses less digits than its factorization.

8697911965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3996.

The product of its digits is 7348320, while the sum is 61.

The square root of 8697911965 is about 93262.5968167303. The cubic root of 8697911965 is about 2056.5455634735.

The spelling of 8697911965 in words is "eight billion, six hundred ninety-seven million, nine hundred eleven thousand, nine hundred sixty-five".