346787643 has 32 divisors (see below), whose sum is σ = 488540160. Its totient is φ = 218574720.

The previous prime is 346787603. The next prime is 346787681.

346787643 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 346787643 - 2⁸ = 346787387 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 346787592 and 346787601.

It is not an unprimeable number, because it can be changed into a prime (346787603) 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 31 ways as a sum of consecutive naturals, for example, 622321 + ... + 622877.

It is an arithmetic number, because the mean of its divisors is an integer number (15266880).

Almost surely, 2^346787643 is an apocalyptic number.

346787643 is a deficient number, since it is larger than the sum of its proper divisors (141752517).

346787643 is a wasteful number, since it uses less digits than its factorization.

346787643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747.

The product of its digits is 2032128, while the sum is 48.

The square root of 346787643 is about 18622.2351773357. The cubic root of 346787643 is about 702.5672013490.

The spelling of 346787643 in words is "three hundred forty-six million, seven hundred eighty-seven thousand, six hundred forty-three".