346988646 has 12 divisors (see below), whose sum is σ = 751808772. Its totient is φ = 115662876.

The previous prime is 346988641. The next prime is 346988651. The reversal of 346988646 is 646889643.

It is an interprime number because it is at equal distance from previous prime (346988641) and next prime (346988651).

It is a super-3 number, since 3×346988646³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 346988592 and 346988601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346988641) 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 5 ways as a sum of consecutive naturals, for example, 9638556 + ... + 9638591.

It is an arithmetic number, because the mean of its divisors is an integer number (62650731).

Almost surely, 2^346988646 is an apocalyptic number.

346988646 is an abundant number, since it is smaller than the sum of its proper divisors (404820126).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

346988646 is a wasteful number, since it uses less digits than its factorization.

346988646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19277155 (or 19277152 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 54.

The square root of 346988646 is about 18627.6312503764. The cubic root of 346988646 is about 702.7029144122.

The spelling of 346988646 in words is "three hundred forty-six million, nine hundred eighty-eight thousand, six hundred forty-six".