342661 has 4 divisors (see below), whose sum is σ = 373824. Its totient is φ = 311500.

The previous prime is 342659. The next prime is 342673. The reversal of 342661 is 166243.

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 342661 - 2¹ = 342659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342691) 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, 15565 + ... + 15586.

It is an arithmetic number, because the mean of its divisors is an integer number (93456).

2³⁴²⁶⁶¹ is an apocalyptic number.

It is an amenable number.

342661 is a deficient number, since it is larger than the sum of its proper divisors (31163).

342661 is a wasteful number, since it uses less digits than its factorization.

342661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31162.

The product of its digits is 864, while the sum is 22.

The square root of 342661 is about 585.3725309579. The cubic root of 342661 is about 69.9769311739.

The spelling of 342661 in words is "three hundred forty-two thousand, six hundred sixty-one".