346021057 has 2 divisors, whose sum is σ = 346021058. Its totient is φ = 346021056.

The previous prime is 346021007. The next prime is 346021079. The reversal of 346021057 is 750120643.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 341843121 + 4177936 = 18489^2 + 2044^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-346021057 is a prime.

It is not a weakly prime, because it can be changed into another prime (346021007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173010528 + 173010529.

It is an arithmetic number, because the mean of its divisors is an integer number (173010529).

Almost surely, 2^346021057 is an apocalyptic number.

It is an amenable number.

346021057 is a deficient number, since it is larger than the sum of its proper divisors (1).

346021057 is an equidigital number, since it uses as much as digits as its factorization.

346021057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 346021057 is about 18601.6412447934. The cubic root of 346021057 is about 702.0491364486.

The spelling of 346021057 in words is "three hundred forty-six million, twenty-one thousand, fifty-seven".