108428857 has 8 divisors (see below), whose sum is σ = 110134080. Its totient is φ = 106728720.

The previous prime is 108428819. The next prime is 108428861. The reversal of 108428857 is 758824801.

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 108428857 - 2²³ = 100040249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108428867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85494 + ... + 86752.

It is an arithmetic number, because the mean of its divisors is an integer number (13766760).

Almost surely, 2^108428857 is an apocalyptic number.

It is an amenable number.

108428857 is a deficient number, since it is larger than the sum of its proper divisors (1705223).

108428857 is a wasteful number, since it uses less digits than its factorization.

108428857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543.

The product of its (nonzero) digits is 143360, while the sum is 43.

The square root of 108428857 is about 10412.9177947394. The cubic root of 108428857 is about 476.8498238763.

The spelling of 108428857 in words is "one hundred eight million, four hundred twenty-eight thousand, eight hundred fifty-seven".