369409 has 2 divisors, whose sum is σ = 369410. Its totient is φ = 369408.

The previous prime is 369407. The next prime is 369419. The reversal of 369409 is 904963.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 360000 + 9409 = 600^2 + 97^2 .

It is a cyclic number.

It is not a de Polignac number, because 369409 - 2¹ = 369407 is a prime.

Together with 369407, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (369407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184704 + 184705.

It is an arithmetic number, because the mean of its divisors is an integer number (184705).

2³⁶⁹⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

369409 is a deficient number, since it is larger than the sum of its proper divisors (1).

369409 is an equidigital number, since it uses as much as digits as its factorization.

369409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 369409 is about 607.7902598759. The cubic root of 369409 is about 71.7522995374.

It can be divided in two parts, 36 and 9409, that multiplied together give a square (338724 = 582²).

The spelling of 369409 in words is "three hundred sixty-nine thousand, four hundred nine".