354820399 has 2 divisors, whose sum is σ = 354820400. Its totient is φ = 354820398.

The previous prime is 354820387. The next prime is 354820457. The reversal of 354820399 is 993028453.

It is a weak prime.

It is an emirp because it is prime and its reverse (993028453) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 354820399 - 2²¹ = 352723247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354820309) 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, 177410199 + 177410200.

It is an arithmetic number, because the mean of its divisors is an integer number (177410200).

Almost surely, 2^354820399 is an apocalyptic number.

354820399 is a deficient number, since it is larger than the sum of its proper divisors (1).

354820399 is an equidigital number, since it uses as much as digits as its factorization.

354820399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 354820399 is about 18836.6769627766. The cubic root of 354820399 is about 707.9504464610.

The spelling of 354820399 in words is "three hundred fifty-four million, eight hundred twenty thousand, three hundred ninety-nine".