380769989 has 2 divisors, whose sum is σ = 380769990. Its totient is φ = 380769988.

The previous prime is 380769959. The next prime is 380770001. The reversal of 380769989 is 989967083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 309232225 + 71537764 = 17585^2 + 8458^2 .

It is a cyclic number.

It is not a de Polignac number, because 380769989 - 2¹⁶ = 380704453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380769919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190384994 + 190384995.

It is an arithmetic number, because the mean of its divisors is an integer number (190384995).

Almost surely, 2^380769989 is an apocalyptic number.

It is an amenable number.

380769989 is a deficient number, since it is larger than the sum of its proper divisors (1).

380769989 is an equidigital number, since it uses as much as digits as its factorization.

380769989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5878656, while the sum is 59.

The square root of 380769989 is about 19513.3284961843. The cubic root of 380769989 is about 724.8045380330.

The spelling of 380769989 in words is "three hundred eighty million, seven hundred sixty-nine thousand, nine hundred eighty-nine".