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13407409 is a prime number
BaseRepresentation
bin110011001001…
…010010110001
3221020011111201
4303021102301
511413014114
61155211201
7221650441
oct63112261
927204451
1013407409
117628204
1245a6b01
132a157a2
141ad0121
15129c874
hexcc94b1

13407409 has 2 divisors, whose sum is σ = 13407410. Its totient is φ = 13407408.

The previous prime is 13407403. The next prime is 13407419. The reversal of 13407409 is 90470431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13162384 + 245025 = 3628^2 + 495^2 .

It is a cyclic number.

It is not a de Polignac number, because 13407409 - 25 = 13407377 is a prime.

It is not a weakly prime, because it can be changed into another prime (13407403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6703704 + 6703705.

It is an arithmetic number, because the mean of its divisors is an integer number (6703705).

Almost surely, 213407409 is an apocalyptic number.

It is an amenable number.

13407409 is a deficient number, since it is larger than the sum of its proper divisors (1).

13407409 is an equidigital number, since it uses as much as digits as its factorization.

13407409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 13407409 is about 3661.6128959790. The cubic root of 13407409 is about 237.5645416464.

The spelling of 13407409 in words is "thirteen million, four hundred seven thousand, four hundred nine".