1108433897 has 4 divisors (see below), whose sum is σ = 1108855296. Its totient is φ = 1108012500.

The previous prime is 1108433873. The next prime is 1108433903. The reversal of 1108433897 is 7983348011.

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: 7983348011 = 4999 ⋅1596989.

It is a cyclic number.

It is not a de Polignac number, because 1108433897 - 2¹⁶ = 1108368361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1108433197) 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, 206729 + ... + 212022.

It is an arithmetic number, because the mean of its divisors is an integer number (277213824).

Almost surely, 2^1108433897 is an apocalyptic number.

It is an amenable number.

1108433897 is a deficient number, since it is larger than the sum of its proper divisors (421399).

1108433897 is an equidigital number, since it uses as much as digits as its factorization.

1108433897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421398.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 1108433897 is about 33293.1509022502. The cubic root of 1108433897 is about 1034.9116269540.

The spelling of 1108433897 in words is "one billion, one hundred eight million, four hundred thirty-three thousand, eight hundred ninety-seven".