354436669 has 2 divisors, whose sum is σ = 354436670. Its totient is φ = 354436668.

The previous prime is 354436651. The next prime is 354436679. The reversal of 354436669 is 966634453.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213539769 + 140896900 = 14613^2 + 11870^2 .

It is a cyclic number.

It is not a de Polignac number, because 354436669 - 2¹⁹ = 353912381 is a prime.

It is a super-2 number, since 2×354436669² = 251250704663631122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354436639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177218334 + 177218335.

It is an arithmetic number, because the mean of its divisors is an integer number (177218335).

Almost surely, 2^354436669 is an apocalyptic number.

It is an amenable number.

354436669 is a deficient number, since it is larger than the sum of its proper divisors (1).

354436669 is an equidigital number, since it uses as much as digits as its factorization.

354436669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1399680, while the sum is 46.

The square root of 354436669 is about 18826.4884936092. The cubic root of 354436669 is about 707.6951437629.

The spelling of 354436669 in words is "three hundred fifty-four million, four hundred thirty-six thousand, six hundred sixty-nine".