376399109 has 2 divisors, whose sum is σ = 376399110. Its totient is φ = 376399108.

The previous prime is 376399103. The next prime is 376399157. The reversal of 376399109 is 901993673.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 319622884 + 56776225 = 17878^2 + 7535^2 .

It is a cyclic number.

It is not a de Polignac number, because 376399109 - 2¹² = 376395013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (376399103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 188199554 + 188199555.

It is an arithmetic number, because the mean of its divisors is an integer number (188199555).

Almost surely, 2^376399109 is an apocalyptic number.

It is an amenable number.

376399109 is a deficient number, since it is larger than the sum of its proper divisors (1).

376399109 is an equidigital number, since it uses as much as digits as its factorization.

376399109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 275562, while the sum is 47.

The square root of 376399109 is about 19401.0079377335. The cubic root of 376399109 is about 722.0205007185.

The spelling of 376399109 in words is "three hundred seventy-six million, three hundred ninety-nine thousand, one hundred nine".