366980809 has 4 divisors (see below), whose sum is σ = 395210116. Its totient is φ = 338751504.

The previous prime is 366980807. The next prime is 366980813. The reversal of 366980809 is 908089663.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 223652025 + 143328784 = 14955^2 + 11972^2 .

It is not a de Polignac number, because 366980809 - 2¹ = 366980807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (366980807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14114634 + ... + 14114659.

It is an arithmetic number, because the mean of its divisors is an integer number (98802529).

Almost surely, 2^366980809 is an apocalyptic number.

It is an amenable number.

366980809 is a deficient number, since it is larger than the sum of its proper divisors (28229307).

366980809 is a wasteful number, since it uses less digits than its factorization.

366980809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28229306.

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 366980809 is about 19156.7431730970. The cubic root of 366980809 is about 715.9474027143.

The spelling of 366980809 in words is "three hundred sixty-six million, nine hundred eighty thousand, eight hundred nine".