103478805 has 12 divisors (see below), whose sum is σ = 179363340. Its totient is φ = 55188672.

The previous prime is 103478803. The next prime is 103478833. The reversal of 103478805 is 508874301.

103478805 is a `hidden beast` number, since 103 + 478 + 80 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 60746436 + 42732369 = 7794^2 + 6537^2 .

It is not a de Polignac number, because 103478805 - 2¹ = 103478803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103478805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103478801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1149720 + ... + 1149809.

It is an arithmetic number, because the mean of its divisors is an integer number (14946945).

Almost surely, 2^103478805 is an apocalyptic number.

103478805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103478805 is a deficient number, since it is larger than the sum of its proper divisors (75884535).

103478805 is a wasteful number, since it uses less digits than its factorization.

103478805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2299540 (or 2299537 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 103478805 is about 10172.4532439329. The cubic root of 103478805 is about 469.4800421584.

The spelling of 103478805 in words is "one hundred three million, four hundred seventy-eight thousand, eight hundred five".