354340997 has 2 divisors, whose sum is σ = 354340998. Its totient is φ = 354340996.

The previous prime is 354340981. The next prime is 354341003. The reversal of 354340997 is 799043453.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 350475841 + 3865156 = 18721^2 + 1966^2 .

It is a cyclic number.

It is not a de Polignac number, because 354340997 - 2⁴ = 354340981 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354340927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177170498 + 177170499.

It is an arithmetic number, because the mean of its divisors is an integer number (177170499).

Almost surely, 2^354340997 is an apocalyptic number.

It is an amenable number.

354340997 is a deficient number, since it is larger than the sum of its proper divisors (1).

354340997 is an equidigital number, since it uses as much as digits as its factorization.

354340997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 44.

The square root of 354340997 is about 18823.9474340533. The cubic root of 354340997 is about 707.6314627082.

The spelling of 354340997 in words is "three hundred fifty-four million, three hundred forty thousand, nine hundred ninety-seven".