343880077 has 2 divisors, whose sum is σ = 343880078. Its totient is φ = 343880076.

The previous prime is 343880041. The next prime is 343880081. The reversal of 343880077 is 770088343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200335716 + 143544361 = 14154^2 + 11981^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343880077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343883077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171940038 + 171940039.

It is an arithmetic number, because the mean of its divisors is an integer number (171940039).

Almost surely, 2^343880077 is an apocalyptic number.

It is an amenable number.

343880077 is a deficient number, since it is larger than the sum of its proper divisors (1).

343880077 is an equidigital number, since it uses as much as digits as its factorization.

343880077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 343880077 is about 18544.0038017684. The cubic root of 343880077 is about 700.5981805198.

The spelling of 343880077 in words is "three hundred forty-three million, eight hundred eighty thousand, seventy-seven".