346661 has 4 divisors (see below), whose sum is σ = 396192. Its totient is φ = 297132.

The previous prime is 346657. The next prime is 346667. The reversal of 346661 is 166643.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 346661 - 2² = 346657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 346661.

It is a congruent number.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24755 + ... + 24768.

It is an arithmetic number, because the mean of its divisors is an integer number (99048).

2³⁴⁶⁶⁶¹ is an apocalyptic number.

It is an amenable number.

346661 is a deficient number, since it is larger than the sum of its proper divisors (49531).

346661 is an equidigital number, since it uses as much as digits as its factorization.

346661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49530.

The product of its digits is 2592, while the sum is 26.

The square root of 346661 is about 588.7792455581. The cubic root of 346661 is about 70.2481667687.

It can be divided in two parts, 3 and 46661, that added together give a palindrome (46664).

The spelling of 346661 in words is "three hundred forty-six thousand, six hundred sixty-one".