351979 has 4 divisors (see below), whose sum is σ = 353176. Its totient is φ = 350784.

The previous prime is 351971. The next prime is 351991. The reversal of 351979 is 979153.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 351979 - 2³ = 351971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (351971) 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, 187 + ... + 859.

It is an arithmetic number, because the mean of its divisors is an integer number (88294).

2³⁵¹⁹⁷⁹ is an apocalyptic number.

351979 is a deficient number, since it is larger than the sum of its proper divisors (1197).

351979 is an equidigital number, since it uses as much as digits as its factorization.

351979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196.

The product of its digits is 8505, while the sum is 34.

The square root of 351979 is about 593.2781809573. The cubic root of 351979 is about 70.6055625628.

The spelling of 351979 in words is "three hundred fifty-one thousand, nine hundred seventy-nine".