108296989 has 4 divisors (see below), whose sum is σ = 109601856. Its totient is φ = 106992124.

The previous prime is 108296959. The next prime is 108297011. The reversal of 108296989 is 989692801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 989692801 = 431 ⋅2296271.

It is a cyclic number.

It is not a de Polignac number, because 108296989 - 2¹⁹ = 107772701 is a prime.

It is a super-2 number, since 2×108296989² = 23456475652932242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108296959) 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, 652309 + ... + 652474.

It is an arithmetic number, because the mean of its divisors is an integer number (27400464).

Almost surely, 2^108296989 is an apocalyptic number.

It is an amenable number.

108296989 is a deficient number, since it is larger than the sum of its proper divisors (1304867).

108296989 is an equidigital number, since it uses as much as digits as its factorization.

108296989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304866.

The product of its (nonzero) digits is 559872, while the sum is 52.

The square root of 108296989 is about 10406.5839255733. The cubic root of 108296989 is about 476.6564351942.

The spelling of 108296989 in words is "one hundred eight million, two hundred ninety-six thousand, nine hundred eighty-nine".