346720001 has 8 divisors (see below), whose sum is σ = 351652224. Its totient is φ = 341815680.

The previous prime is 346719977. The next prime is 346720013. The reversal of 346720001 is 100027643.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-346720001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (346720501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18716 + ... + 32306.

It is an arithmetic number, because the mean of its divisors is an integer number (43956528).

Almost surely, 2^346720001 is an apocalyptic number.

It is an amenable number.

346720001 is a deficient number, since it is larger than the sum of its proper divisors (4932223).

346720001 is a wasteful number, since it uses less digits than its factorization.

346720001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13951.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 346720001 is about 18620.4189265441. The cubic root of 346720001 is about 702.5215190784.

Adding to 346720001 its reverse (100027643), we get a palindrome (446747644).

The spelling of 346720001 in words is "three hundred forty-six million, seven hundred twenty thousand, one".