614391 has 4 divisors (see below), whose sum is σ = 819192. Its totient is φ = 409592.

The previous prime is 614387. The next prime is 614413. The reversal of 614391 is 193416.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 614391 - 2² = 614387 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 (614321) 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, 102396 + ... + 102401.

It is an arithmetic number, because the mean of its divisors is an integer number (204798).

2⁶¹⁴³⁹¹ is an apocalyptic number.

614391 is a deficient number, since it is larger than the sum of its proper divisors (204801).

614391 is a wasteful number, since it uses less digits than its factorization.

614391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204800.

The product of its digits is 648, while the sum is 24.

The square root of 614391 is about 783.8309766780. The cubic root of 614391 is about 85.0122704316.

The spelling of 614391 in words is "six hundred fourteen thousand, three hundred ninety-one".