353921429 has 4 divisors (see below), whose sum is σ = 354464076. Its totient is φ = 353378784.

The previous prime is 353921371. The next prime is 353921431. The reversal of 353921429 is 924129353.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51509329 + 302412100 = 7177^2 + 17390^2 .

It is a cyclic number.

It is not a de Polignac number, because 353921429 - 2⁸ = 353921173 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 353921392 and 353921401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (353921479) 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 in 3 ways as a sum of consecutive naturals, for example, 270344 + ... + 271649.

It is an arithmetic number, because the mean of its divisors is an integer number (88616019).

Almost surely, 2^353921429 is an apocalyptic number.

It is an amenable number.

353921429 is a deficient number, since it is larger than the sum of its proper divisors (542647).

353921429 is an equidigital number, since it uses as much as digits as its factorization.

353921429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542646.

The product of its digits is 58320, while the sum is 38.

The square root of 353921429 is about 18812.7996055877. The cubic root of 353921429 is about 707.3520550365.

The spelling of 353921429 in words is "three hundred fifty-three million, nine hundred twenty-one thousand, four hundred twenty-nine".