351920873 has 2 divisors, whose sum is σ = 351920874. Its totient is φ = 351920872.

The previous prime is 351920857. The next prime is 351920923. The reversal of 351920873 is 378029153.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 293505424 + 58415449 = 17132^2 + 7643^2 .

It is a cyclic number.

It is not a de Polignac number, because 351920873 - 2⁴ = 351920857 is a prime.

It is not a weakly prime, because it can be changed into another prime (351920843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175960436 + 175960437.

It is an arithmetic number, because the mean of its divisors is an integer number (175960437).

Almost surely, 2^351920873 is an apocalyptic number.

It is an amenable number.

351920873 is a deficient number, since it is larger than the sum of its proper divisors (1).

351920873 is an equidigital number, since it uses as much as digits as its factorization.

351920873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 351920873 is about 18759.5541791376. The cubic root of 351920873 is about 706.0167566851.

The spelling of 351920873 in words is "three hundred fifty-one million, nine hundred twenty thousand, eight hundred seventy-three".