103405857 has 16 divisors (see below), whose sum is σ = 140900352. Its totient is φ = 67438800.

The previous prime is 103405837. The next prime is 103405867. The reversal of 103405857 is 758504301.

It is not a de Polignac number, because 103405857 - 2²³ = 95017249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103405837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28648 + ... + 32054.

It is an arithmetic number, because the mean of its divisors is an integer number (8806272).

Almost surely, 2^103405857 is an apocalyptic number.

It is an amenable number.

103405857 is a deficient number, since it is larger than the sum of its proper divisors (37494495).

103405857 is a wasteful number, since it uses less digits than its factorization.

103405857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3628.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 103405857 is about 10168.8670460381. The cubic root of 103405857 is about 469.3696953070.

The spelling of 103405857 in words is "one hundred three million, four hundred five thousand, eight hundred fifty-seven".