346478643 has 24 divisors (see below), whose sum is σ = 574269696. Its totient is φ = 197190000.

The previous prime is 346478611. The next prime is 346478681. The reversal of 346478643 is 346874643.

It is not a de Polignac number, because 346478643 - 2⁵ = 346478611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (346478843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4858 + ... + 26768.

It is an arithmetic number, because the mean of its divisors is an integer number (23927904).

Almost surely, 2^346478643 is an apocalyptic number.

346478643 is a deficient number, since it is larger than the sum of its proper divisors (227791053).

346478643 is a wasteful number, since it uses less digits than its factorization.

346478643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22175 (or 22172 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 45.

The square root of 346478643 is about 18613.9367947783. The cubic root of 346478643 is about 702.3584686362.

The spelling of 346478643 in words is "three hundred forty-six million, four hundred seventy-eight thousand, six hundred forty-three".