108492997 has 4 divisors (see below), whose sum is σ = 114874956. Its totient is φ = 102111040.

The previous prime is 108492949. The next prime is 108493003. The reversal of 108492997 is 799294801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 799294801 = 1061 ⋅753341.

It can be written as a sum of positive squares in 2 ways, for example, as 64416676 + 44076321 = 8026^2 + 6639^2 .

It is a cyclic number.

It is not a de Polignac number, because 108492997 - 2¹⁹ = 107968709 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 108492997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108492947) 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, 3190954 + ... + 3190987.

It is an arithmetic number, because the mean of its divisors is an integer number (28718739).

Almost surely, 2^108492997 is an apocalyptic number.

108492997 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

108492997 is a deficient number, since it is larger than the sum of its proper divisors (6381959).

108492997 is an equidigital number, since it uses as much as digits as its factorization.

108492997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6381958.

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 108492997 is about 10415.9971678184. The cubic root of 108492997 is about 476.9438305818.

The spelling of 108492997 in words is "one hundred eight million, four hundred ninety-two thousand, nine hundred ninety-seven".