108563897 has 8 divisors (see below), whose sum is σ = 117084744. Its totient is φ = 100067328.

The previous prime is 108563867. The next prime is 108563909. The reversal of 108563897 is 798365801.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 39075001 + 69488896 = 6251^2 + 8336^2 .

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 108563897 - 2¹⁶ = 108498361 is a prime.

It is a super-2 number, since 2×108563897² = 23572239463653218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108563857) 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, 3833 + ... + 15225.

It is an arithmetic number, because the mean of its divisors is an integer number (14635593).

Almost surely, 2^108563897 is an apocalyptic number.

It is an amenable number.

108563897 is a deficient number, since it is larger than the sum of its proper divisors (8520847).

108563897 is a wasteful number, since it uses less digits than its factorization.

108563897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12139.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 108563897 is about 10419.4000307119. The cubic root of 108563897 is about 477.0477019687.

The spelling of 108563897 in words is "one hundred eight million, five hundred sixty-three thousand, eight hundred ninety-seven".