108599557 has 6 divisors (see below), whose sum is σ = 119369894. Its totient is φ = 98726760.

The previous prime is 108599531. The next prime is 108599567. The reversal of 108599557 is 755995801.

It can be written as a sum of positive squares in only one way, i.e., 108284836 + 314721 = 10406^2 + 561^2 .

It is a de Polignac number, because none of the positive numbers 2^k-108599557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 108599557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108599507) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 448638 + ... + 448879.

Almost surely, 2^108599557 is an apocalyptic number.

It is an amenable number.

108599557 is a deficient number, since it is larger than the sum of its proper divisors (10770337).

108599557 is an equidigital number, since it uses as much as digits as its factorization.

108599557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897539 (or 897528 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 49.

The square root of 108599557 is about 10421.1111211809. Note that the first 4 decimals coincide. The cubic root of 108599557 is about 477.0999282282.

The spelling of 108599557 in words is "one hundred eight million, five hundred ninety-nine thousand, five hundred fifty-seven".