369690809 has 8 divisors (see below), whose sum is σ = 398640480. Its totient is φ = 341690400.

The previous prime is 369690803. The next prime is 369690817. The reversal of 369690809 is 908096963.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 369690809 - 2¹⁶ = 369625273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (369690803) 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 in 7 ways as a sum of consecutive naturals, for example, 236507 + ... + 238064.

It is an arithmetic number, because the mean of its divisors is an integer number (49830060).

Almost surely, 2^369690809 is an apocalyptic number.

It is an amenable number.

369690809 is a deficient number, since it is larger than the sum of its proper divisors (28949671).

369690809 is a wasteful number, since it uses less digits than its factorization.

369690809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474631.

The product of its (nonzero) digits is 629856, while the sum is 50.

The square root of 369690809 is about 19227.3453445867. The cubic root of 369690809 is about 717.7054065961.

The spelling of 369690809 in words is "three hundred sixty-nine million, six hundred ninety thousand, eight hundred nine".