103685429 has 2 divisors, whose sum is σ = 103685430. Its totient is φ = 103685428.

The previous prime is 103685423. The next prime is 103685443. The reversal of 103685429 is 924586301.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101465329 + 2220100 = 10073^2 + 1490^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103685429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103685392 and 103685401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103685423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51842714 + 51842715.

It is an arithmetic number, because the mean of its divisors is an integer number (51842715).

Almost surely, 2^103685429 is an apocalyptic number.

It is an amenable number.

103685429 is a deficient number, since it is larger than the sum of its proper divisors (1).

103685429 is an equidigital number, since it uses as much as digits as its factorization.

103685429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 103685429 is about 10182.6042346740. The cubic root of 103685429 is about 469.7923165720.

The spelling of 103685429 in words is "one hundred three million, six hundred eighty-five thousand, four hundred twenty-nine".