108648739 has 4 divisors (see below), whose sum is σ = 108669600. Its totient is φ = 108627880.

The previous prime is 108648721. The next prime is 108648773. The reversal of 108648739 is 937846801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 108648739 - 2⁷ = 108648611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108640739) 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, 4662 + ... + 15460.

It is an arithmetic number, because the mean of its divisors is an integer number (27167400).

Almost surely, 2^108648739 is an apocalyptic number.

108648739 is a deficient number, since it is larger than the sum of its proper divisors (20861).

108648739 is a wasteful number, since it uses less digits than its factorization.

108648739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20860.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 108648739 is about 10423.4705832558. The cubic root of 108648739 is about 477.1719395329.

The spelling of 108648739 in words is "one hundred eight million, six hundred forty-eight thousand, seven hundred thirty-nine".