353674421 has 2 divisors, whose sum is σ = 353674422. Its totient is φ = 353674420.

The previous prime is 353674411. The next prime is 353674457. The reversal of 353674421 is 124476353.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 303108100 + 50566321 = 17410^2 + 7111^2 .

It is a cyclic number.

It is not a de Polignac number, because 353674421 - 2²⁶ = 286565557 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (353674411) 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, 176837210 + 176837211.

It is an arithmetic number, because the mean of its divisors is an integer number (176837211).

Almost surely, 2^353674421 is an apocalyptic number.

It is an amenable number.

353674421 is a deficient number, since it is larger than the sum of its proper divisors (1).

353674421 is an equidigital number, since it uses as much as digits as its factorization.

353674421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 35.

The square root of 353674421 is about 18806.2335676233. The cubic root of 353674421 is about 707.1874589190.

The spelling of 353674421 in words is "three hundred fifty-three million, six hundred seventy-four thousand, four hundred twenty-one".