108906949 has 4 divisors (see below), whose sum is σ = 108981580. Its totient is φ = 108832320.

The previous prime is 108906923. The next prime is 108906953. The reversal of 108906949 is 949609801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58752225 + 50154724 = 7665^2 + 7082^2 .

It is a cyclic number.

It is not a de Polignac number, because 108906949 - 2⁷ = 108906821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 108906899 and 108906908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108906989) 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, 35082 + ... + 38059.

It is an arithmetic number, because the mean of its divisors is an integer number (27245395).

Almost surely, 2^108906949 is an apocalyptic number.

It is an amenable number.

108906949 is a deficient number, since it is larger than the sum of its proper divisors (74631).

108906949 is an equidigital number, since it uses as much as digits as its factorization.

108906949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74630.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 108906949 is about 10435.8492227514. The cubic root of 108906949 is about 477.5496493608.

The spelling of 108906949 in words is "one hundred eight million, nine hundred six thousand, nine hundred forty-nine".