614681 has 6 divisors (see below), whose sum is σ = 633150. Its totient is φ = 596736.

The previous prime is 614671. The next prime is 614683. The reversal of 614681 is 186416.

It can be written as a sum of positive squares in 3 ways, for example, as 379456 + 235225 = 616^2 + 485^2 .

It is not a de Polignac number, because 614681 - 2⁶ = 614617 is a prime.

It is a super-2 number, since 2×614681² = 755665463522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 614681.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 614681.

It is not an unprimeable number, because it can be changed into a prime (614683) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1145 + ... + 1593.

It is an arithmetic number, because the mean of its divisors is an integer number (105525).

2⁶¹⁴⁶⁸¹ is an apocalyptic number.

It is an amenable number.

614681 is a deficient number, since it is larger than the sum of its proper divisors (18469).

614681 is an equidigital number, since it uses as much as digits as its factorization.

614681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523 (or 486 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 614681 is about 784.0159437154. The cubic root of 614681 is about 85.0256439351.

The spelling of 614681 in words is "six hundred fourteen thousand, six hundred eighty-one".