354806369 has 2 divisors, whose sum is σ = 354806370. Its totient is φ = 354806368.

The previous prime is 354806311. The next prime is 354806401. The reversal of 354806369 is 963608453.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 278890000 + 75916369 = 16700^2 + 8713^2 .

It is an emirp because it is prime and its reverse (963608453) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 354806369 - 2²⁰ = 353757793 is a prime.

It is a super-2 number, since 2×354806369² = 251775118965928322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (354805369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177403184 + 177403185.

It is an arithmetic number, because the mean of its divisors is an integer number (177403185).

Almost surely, 2^354806369 is an apocalyptic number.

It is an amenable number.

354806369 is a deficient number, since it is larger than the sum of its proper divisors (1).

354806369 is an equidigital number, since it uses as much as digits as its factorization.

354806369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 44.

The square root of 354806369 is about 18836.3045473362. The cubic root of 354806369 is about 707.9411152842.

The spelling of 354806369 in words is "three hundred fifty-four million, eight hundred six thousand, three hundred sixty-nine".