369616409 has 2 divisors, whose sum is σ = 369616410. Its totient is φ = 369616408.

The previous prime is 369616399. The next prime is 369616439. The reversal of 369616409 is 904616963.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 358988809 + 10627600 = 18947^2 + 3260^2 .

It is a cyclic number.

It is not a de Polignac number, because 369616409 - 2⁴ = 369616393 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 369616409.

It is not a weakly prime, because it can be changed into another prime (369616439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184808204 + 184808205.

It is an arithmetic number, because the mean of its divisors is an integer number (184808205).

Almost surely, 2^369616409 is an apocalyptic number.

It is an amenable number.

369616409 is a deficient number, since it is larger than the sum of its proper divisors (1).

369616409 is an equidigital number, since it uses as much as digits as its factorization.

369616409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 369616409 is about 19225.4105027695. The cubic root of 369616409 is about 717.6572574731.

The spelling of 369616409 in words is "three hundred sixty-nine million, six hundred sixteen thousand, four hundred nine".