379259989 has 2 divisors, whose sum is σ = 379259990. Its totient is φ = 379259988.

The previous prime is 379259929. The next prime is 379260001. The reversal of 379259989 is 989952973.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 275892100 + 103367889 = 16610^2 + 10167^2 .

It is a cyclic number.

It is not a de Polignac number, because 379259989 - 2¹³ = 379251797 is a prime.

It is a super-3 number, since 3×379259989³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (379259929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189629994 + 189629995.

It is an arithmetic number, because the mean of its divisors is an integer number (189629995).

Almost surely, 2^379259989 is an apocalyptic number.

It is an amenable number.

379259989 is a deficient number, since it is larger than the sum of its proper divisors (1).

379259989 is an equidigital number, since it uses as much as digits as its factorization.

379259989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11022480, while the sum is 61.

The square root of 379259989 is about 19474.5985581218. The cubic root of 379259989 is about 723.8451620133.

The spelling of 379259989 in words is "three hundred seventy-nine million, two hundred fifty-nine thousand, nine hundred eighty-nine".