108656089 has 8 divisors (see below), whose sum is σ = 109623560. Its totient is φ = 107692416.

The previous prime is 108656077. The next prime is 108656101. The reversal of 108656089 is 980656801.

108656089 = T₂₆₂ + T₂₆₃ + ... + T₈₇₄.

It is an interprime number because it is at equal distance from previous prime (108656077) and next prime (108656101).

It can be written as a sum of positive squares in 4 ways, for example, as 10942864 + 97713225 = 3308^2 + 9885^2 .

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 108656089 - 2¹³ = 108647897 is a prime.

It is a super-2 number, since 2×108656089² = 23612291353551842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108656389) 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, 95677 + ... + 96805.

It is an arithmetic number, because the mean of its divisors is an integer number (13702945).

Almost surely, 2^108656089 is an apocalyptic number.

It is an amenable number.

108656089 is a deficient number, since it is larger than the sum of its proper divisors (967471).

108656089 is a wasteful number, since it uses less digits than its factorization.

108656089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 108656089 is about 10423.8231470032. The cubic root of 108656089 is about 477.1826993899.

It can be divided in two parts, 1086 and 56089, that added together give a palindrome (57175).

The spelling of 108656089 in words is "one hundred eight million, six hundred fifty-six thousand, eighty-nine".