371666489 has 2 divisors, whose sum is σ = 371666490. Its totient is φ = 371666488.

The previous prime is 371666479. The next prime is 371666497. The reversal of 371666489 is 984666173.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 300432889 + 71233600 = 17333^2 + 8440^2 .

It is an emirp because it is prime and its reverse (984666173) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 371666489 - 2¹² = 371662393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (371666479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 185833244 + 185833245.

It is an arithmetic number, because the mean of its divisors is an integer number (185833245).

Almost surely, 2^371666489 is an apocalyptic number.

It is an amenable number.

371666489 is a deficient number, since it is larger than the sum of its proper divisors (1).

371666489 is an equidigital number, since it uses as much as digits as its factorization.

371666489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 50.

The square root of 371666489 is about 19278.6537133691. The cubic root of 371666489 is about 718.9816422471.

The spelling of 371666489 in words is "three hundred seventy-one million, six hundred sixty-six thousand, four hundred eighty-nine".