379233809 has 2 divisors, whose sum is σ = 379233810. Its totient is φ = 379233808.

The previous prime is 379233737. The next prime is 379233823. The reversal of 379233809 is 908332973.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 294225409 + 85008400 = 17153^2 + 9220^2 .

It is an emirp because it is prime and its reverse (908332973) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 379233809 - 2¹² = 379229713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 379233809.

It is not a weakly prime, because it can be changed into another prime (379233859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189616904 + 189616905.

It is an arithmetic number, because the mean of its divisors is an integer number (189616905).

Almost surely, 2^379233809 is an apocalyptic number.

It is an amenable number.

379233809 is a deficient number, since it is larger than the sum of its proper divisors (1).

379233809 is an equidigital number, since it uses as much as digits as its factorization.

379233809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 44.

The square root of 379233809 is about 19473.9263888924. The cubic root of 379233809 is about 723.8285061546.

The spelling of 379233809 in words is "three hundred seventy-nine million, two hundred thirty-three thousand, eight hundred nine".