103404409 has 2 divisors, whose sum is σ = 103404410. Its totient is φ = 103404408.

The previous prime is 103404391. The next prime is 103404467. The reversal of 103404409 is 904404301.

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., 99900025 + 3504384 = 9995^2 + 1872^2 .

It is a cyclic number.

It is not a de Polignac number, because 103404409 - 2¹³ = 103396217 is a prime.

It is not a weakly prime, because it can be changed into another prime (103404209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51702204 + 51702205.

It is an arithmetic number, because the mean of its divisors is an integer number (51702205).

Almost surely, 2^103404409 is an apocalyptic number.

It is an amenable number.

103404409 is a deficient number, since it is larger than the sum of its proper divisors (1).

103404409 is an equidigital number, since it uses as much as digits as its factorization.

103404409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 103404409 is about 10168.7958480835. The cubic root of 103404409 is about 469.3675044237.

The spelling of 103404409 in words is "one hundred three million, four hundred four thousand, four hundred nine".