103928905 has 8 divisors (see below), whose sum is σ = 132050952. Its totient is φ = 78252288.

The previous prime is 103928863. The next prime is 103928941. The reversal of 103928905 is 509829301.

It can be written as a sum of positive squares in 4 ways, for example, as 52606009 + 51322896 = 7253^2 + 7164^2 .

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 103928905 - 2⁹ = 103928393 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 611262 + ... + 611431.

It is an arithmetic number, because the mean of its divisors is an integer number (16506369).

Almost surely, 2^103928905 is an apocalyptic number.

It is an amenable number.

103928905 is a deficient number, since it is larger than the sum of its proper divisors (28122047).

103928905 is a wasteful number, since it uses less digits than its factorization.

103928905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222715.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 103928905 is about 10194.5527121105. The cubic root of 103928905 is about 470.1597540528.

The spelling of 103928905 in words is "one hundred three million, nine hundred twenty-eight thousand, nine hundred five".