346421563 has 8 divisors (see below), whose sum is σ = 367999632. Its totient is φ = 324976896.

The previous prime is 346421533. The next prime is 346421591. The reversal of 346421563 is 365124643.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 346421563 - 2⁵ = 346421531 is a prime.

It is a super-2 number, since 2×346421563² = 240015798622725938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (346421503) 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 7 ways as a sum of consecutive naturals, for example, 27970 + ... + 38407.

It is an arithmetic number, because the mean of its divisors is an integer number (45999954).

Almost surely, 2^346421563 is an apocalyptic number.

346421563 is a deficient number, since it is larger than the sum of its proper divisors (21578069).

346421563 is a wasteful number, since it uses less digits than its factorization.

346421563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66701.

The product of its digits is 51840, while the sum is 34.

The square root of 346421563 is about 18612.4034718786. The cubic root of 346421563 is about 702.3198969244.

The spelling of 346421563 in words is "three hundred forty-six million, four hundred twenty-one thousand, five hundred sixty-three".