343222987 has 2 divisors, whose sum is σ = 343222988. Its totient is φ = 343222986.

The previous prime is 343222927. The next prime is 343223029. The reversal of 343222987 is 789222343.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 343222987 - 2¹⁵ = 343190219 is a prime.

It is not a weakly prime, because it can be changed into another prime (343222927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171611493 + 171611494.

It is an arithmetic number, because the mean of its divisors is an integer number (171611494).

Almost surely, 2^343222987 is an apocalyptic number.

343222987 is a deficient number, since it is larger than the sum of its proper divisors (1).

343222987 is an equidigital number, since it uses as much as digits as its factorization.

343222987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 40.

The square root of 343222987 is about 18526.2782824830. The cubic root of 343222987 is about 700.1516589766.

The spelling of 343222987 in words is "three hundred forty-three million, two hundred twenty-two thousand, nine hundred eighty-seven".