614661 has 4 divisors (see below), whose sum is σ = 819552. Its totient is φ = 409772.

The previous prime is 614659. The next prime is 614671. The reversal of 614661 is 166416.

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 614661 - 2¹ = 614659 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (614611) by changing a digit.

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, 102441 + ... + 102446.

It is an arithmetic number, because the mean of its divisors is an integer number (204888).

2⁶¹⁴⁶⁶¹ is an apocalyptic number.

It is an amenable number.

614661 is a deficient number, since it is larger than the sum of its proper divisors (204891).

614661 is a wasteful number, since it uses less digits than its factorization.

614661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204890.

The product of its digits is 864, while the sum is 24.

The square root of 614661 is about 784.0031887690. The cubic root of 614661 is about 85.0247217595.

It can be divided in two parts, 614 and 661, that added together give a triangular number (1275 = T₅₀).

The spelling of 614661 in words is "six hundred fourteen thousand, six hundred sixty-one".