354643 has 2 divisors, whose sum is σ = 354644. Its totient is φ = 354642.

The previous prime is 354619. The next prime is 354647. The reversal of 354643 is 346453.

It is a strong prime.

It is an emirp because it is prime and its reverse (346453) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-354643 is a prime.

It is a d-powerful number, because it can be written as 3¹¹ + 5 + 6³ + 4³ + 4³ + 3¹¹ .

354643 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (354647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177321 + 177322.

It is an arithmetic number, because the mean of its divisors is an integer number (177322).

2³⁵⁴⁶⁴³ is an apocalyptic number.

354643 is a deficient number, since it is larger than the sum of its proper divisors (1).

354643 is an equidigital number, since it uses as much as digits as its factorization.

354643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 25.

The square root of 354643 is about 595.5191012890. The cubic root of 354643 is about 70.7832442500.

The spelling of 354643 in words is "three hundred fifty-four thousand, six hundred forty-three".