346421659 has 4 divisors (see below), whose sum is σ = 346877640. Its totient is φ = 345965680.

The previous prime is 346421641. The next prime is 346421671. The reversal of 346421659 is 956124643.

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

It is a cyclic number.

It is not a de Polignac number, because 346421659 - 2⁷ = 346421531 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (346421609) 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 in 3 ways as a sum of consecutive naturals, for example, 226849 + ... + 228370.

It is an arithmetic number, because the mean of its divisors is an integer number (86719410).

Almost surely, 2^346421659 is an apocalyptic number.

346421659 is a deficient number, since it is larger than the sum of its proper divisors (455981).

346421659 is an equidigital number, since it uses as much as digits as its factorization.

346421659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455980.

The product of its digits is 155520, while the sum is 40.

The square root of 346421659 is about 18612.4060508039. The cubic root of 346421659 is about 702.3199617998.

The spelling of 346421659 in words is "three hundred forty-six million, four hundred twenty-one thousand, six hundred fifty-nine".