357989 has 2 divisors, whose sum is σ = 357990. Its totient is φ = 357988.

The previous prime is 357983. The next prime is 357997. The reversal of 357989 is 989753.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209764 + 148225 = 458^2 + 385^2 .

It is an emirp because it is prime and its reverse (989753) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 357989 - 2⁸ = 357733 is a prime.

It is a super-2 number, since 2×357989² = 256312248242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (357983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178994 + 178995.

It is an arithmetic number, because the mean of its divisors is an integer number (178995).

2³⁵⁷⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

357989 is a deficient number, since it is larger than the sum of its proper divisors (1).

357989 is an equidigital number, since it uses as much as digits as its factorization.

357989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 41.

The square root of 357989 is about 598.3218197592. The cubic root of 357989 is about 71.0051573322.

The spelling of 357989 in words is "three hundred fifty-seven thousand, nine hundred eighty-nine".