368506809 has 12 divisors (see below), whose sum is σ = 580677552. Its totient is φ = 223337400.

The previous prime is 368506777. The next prime is 368506813. The reversal of 368506809 is 908605863.

368506809 is a `hidden beast` number, since 3 + 68 + 506 + 80 + 9 = 666.

It is not a de Polignac number, because 368506809 - 2⁵ = 368506777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (368506819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1861047 + ... + 1861244.

It is an arithmetic number, because the mean of its divisors is an integer number (48389796).

Almost surely, 2^368506809 is an apocalyptic number.

It is an amenable number.

368506809 is a deficient number, since it is larger than the sum of its proper divisors (212170743).

368506809 is a wasteful number, since it uses less digits than its factorization.

368506809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3722308 (or 3722305 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 368506809 is about 19196.5311710215. The cubic root of 368506809 is about 716.9383944782.

The spelling of 368506809 in words is "three hundred sixty-eight million, five hundred six thousand, eight hundred nine".