346664 has 16 divisors (see below), whose sum is σ = 688500. Its totient is φ = 163072.

The previous prime is 346657. The next prime is 346667. The reversal of 346664 is 466643.

It can be written as a sum of positive squares in 2 ways, for example, as 293764 + 52900 = 542^2 + 230^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346667) by changing a digit.

346664 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1139 + ... + 1410.

2³⁴⁶⁶⁶⁴ is an apocalyptic number.

346664 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

346664 is a deficient number, since it is larger than the sum of its proper divisors (341836).

346664 is a wasteful number, since it uses less digits than its factorization.

346664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2572 (or 2568 counting only the distinct ones).

The product of its digits is 10368, while the sum is 29.

The square root of 346664 is about 588.7817931968. The cubic root of 346664 is about 70.2483694104.

It can be divided in two parts, 34 and 6664, that multiplied together give a square (226576 = 476²).

The spelling of 346664 in words is "three hundred forty-six thousand, six hundred sixty-four".