616671 has 12 divisors (see below), whose sum is σ = 971880. Its totient is φ = 373680.

The previous prime is 616669. The next prime is 616673. The reversal of 616671 is 176616.

It is an interprime number because it is at equal distance from previous prime (616669) and next prime (616673).

It is not a de Polignac number, because 616671 - 2¹ = 616669 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616673) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3016 + ... + 3213.

It is an arithmetic number, because the mean of its divisors is an integer number (80990).

2⁶¹⁶⁶⁷¹ is an apocalyptic number.

616671 is a deficient number, since it is larger than the sum of its proper divisors (355209).

616671 is a wasteful number, since it uses less digits than its factorization.

616671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6246 (or 6243 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 616671 is about 785.2840250508. The cubic root of 616671 is about 85.1173005644.

The spelling of 616671 in words is "six hundred sixteen thousand, six hundred seventy-one".